gpu: nvgpu: Fix MISRA rule 15.6 violations

MISRA Rule-15.6 requires that all if-else blocks and loop blocks
be enclosed in braces, including single statement blocks. Fix errors
due to single statement if-else and loop blocks without braces
by introducing the braces.

JIRA NVGPU-775

Change-Id: Ib70621d39735abae3fd2eb7ccf77f36125e2d7b7
Signed-off-by: Srirangan Madhavan <smadhavan@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1928745
GVS: Gerrit_Virtual_Submit
Reviewed-by: Adeel Raza <araza@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

drivers/gpu/nvgpu/common/ce2.c

@@ -65,8 +65,9 @@ int gk20a_ce_execute_ops(struct gk20a *g,
 	struct nvgpu_channel_fence fence = {0, 0};
 	struct gk20a_fence *ce_cmd_buf_fence_out = NULL;
 
-	if (!ce_app->initialised ||ce_app->app_state != NVGPU_CE_ACTIVE)
+	if (!ce_app->initialised || ce_app->app_state != NVGPU_CE_ACTIVE) {
 		goto end;
+	}
 
 	nvgpu_mutex_acquire(&ce_app->app_mutex);
 
@@ -108,9 +109,10 @@ int gk20a_ce_execute_ops(struct gk20a *g,
 
 		gk20a_fence_put(*prev_post_fence);
 		*prev_post_fence = NULL;
-		if (ret != 0)
+		if (ret != 0) {
 			goto noop;
 		}
+	}
 
 	cmd_buf_gpu_va = (ce_ctx->cmd_buf_mem.gpu_va + (u64)(cmd_buf_read_offset *sizeof(u32)));
 

drivers/gpu/nvgpu/common/fuse/fuse_gp106.c

@@ -57,8 +57,9 @@ u32 gp106_fuse_read_vin_cal_slope_intercept_fuse(struct gk20a *g,
 
 	/* read gpc0 irrespective of vin id */
 	gpc0data = gk20a_readl(g, fuse_vin_cal_gpc0_r());
-	if (gpc0data == 0xFFFFFFFF)
+	if (gpc0data == 0xFFFFFFFF) {
 		return -EINVAL;
+	}
 
 	switch (vin_id) {
 	case CTRL_CLK_VIN_ID_GPC0:
@@ -97,8 +98,9 @@ u32 gp106_fuse_read_vin_cal_slope_intercept_fuse(struct gk20a *g,
 	default:
 		return -EINVAL;
 	}
-	if (data == 0xFFFFFFFF)
+	if (data == 0xFFFFFFFF) {
 		return -EINVAL;
+	}
 
 	gpc0interceptdata = (fuse_vin_cal_gpc0_icpt_int_data_v(gpc0data) <<
 			     fuse_vin_cal_gpc0_icpt_frac_data_s()) +
@@ -137,10 +139,11 @@ u32 gp106_fuse_read_vin_cal_slope_intercept_fuse(struct gk20a *g,
 		return -EINVAL;
 	}
 
-	if (fuse_vin_cal_gpc1_delta_icpt_sign_data_v(data))
+	if (fuse_vin_cal_gpc1_delta_icpt_sign_data_v(data)) {
 		*intercept = gpc0interceptdata - interceptdata;
-	else
+	} else {
 		*intercept = gpc0interceptdata + interceptdata;
+	}
 
 	/* slope */
 	gpc0slopedata = (fuse_vin_cal_gpc0_slope_int_data_v(gpc0data) <<
@@ -169,10 +172,11 @@ u32 gp106_fuse_read_vin_cal_slope_intercept_fuse(struct gk20a *g,
 		return -EINVAL;
 	}
 
-	if (fuse_vin_cal_gpc1_delta_slope_sign_data_v(data))
+	if (fuse_vin_cal_gpc1_delta_slope_sign_data_v(data)) {
 		*slope = gpc0slopedata - slopedata;
-	else
+	} else {
 		*slope = gpc0slopedata + slopedata;
+	}
 	return 0;
 }
 

drivers/gpu/nvgpu/common/mm/comptags.c

@@ -87,8 +87,9 @@ int gk20a_comptag_allocator_init(struct gk20a *g,
 	size--;
 	allocator->bitmap = nvgpu_vzalloc(g,
 					  BITS_TO_LONGS(size) * sizeof(long));
-	if (allocator->bitmap == NULL)
+	if (allocator->bitmap == NULL) {
 		return -ENOMEM;
+	}
 
 	allocator->size = size;
 

drivers/gpu/nvgpu/common/mm/mm.c

@@ -495,8 +495,9 @@ static int nvgpu_init_mm_setup_sw(struct gk20a *g)
 	}
 
 	err = nvgpu_init_mmu_debug(mm);
-	if (err != 0)
+	if (err != 0) {
 		return err;
+	}
 
 	mm->remove_support = nvgpu_remove_mm_support;
 	mm->remove_ce_support = nvgpu_remove_mm_ce_support;

drivers/gpu/nvgpu/common/sec2/sec2_ipc.c

@@ -390,11 +390,12 @@ int nvgpu_sec2_process_message(struct nvgpu_sec2 *sec2)
 
 		msg.hdr.ctrl_flags &= ~PMU_CMD_FLAGS_PMU_MASK;
 
-		if (msg.hdr.ctrl_flags == PMU_CMD_FLAGS_EVENT)
+		if (msg.hdr.ctrl_flags == PMU_CMD_FLAGS_EVENT) {
 			sec2_handle_event(sec2, &msg);
-		else
+		} else {
 			sec2_response_handle(sec2, &msg);
 		}
+	}
 
 exit:
 	return status;
@@ -410,8 +411,9 @@ int nvgpu_sec2_wait_message_cond(struct nvgpu_sec2 *sec2, u32 timeout_ms,
 	nvgpu_timeout_init(g, &timeout, timeout_ms, NVGPU_TIMER_CPU_TIMER);
 
 	do {
-		if (*(u8 *)var == val)
+		if (*(u8 *)var == val) {
 			return 0;
+		}
 
 		if (g->ops.sec2.is_interrupted(&g->sec2)) {
 			g->ops.sec2.isr(g);

drivers/gpu/nvgpu/common/semaphore.c

@@ -591,11 +591,13 @@ bool nvgpu_semaphore_reset(struct nvgpu_semaphore_int *hw_sema)
 	 */
 
 	if (WARN_ON(__nvgpu_semaphore_value_released(threshold + 1U,
-						     current_val)))
+						     current_val))) {
 		return false;
+	}
 
-	if (current_val == threshold)
+	if (current_val == threshold) {
 		return false;
+	}
 
 	nvgpu_mem_wr(hw_sema->ch->g, &hw_sema->location.pool->rw_mem,
 			hw_sema->location.offset, threshold);

drivers/gpu/nvgpu/common/therm/therm.c

@@ -31,10 +31,12 @@ int nvgpu_init_therm_support(struct gk20a *g)
 
 	nvgpu_log_fn(g, " ");
 
-	if (g->ops.therm.init_therm_setup_hw != NULL)
+	if (g->ops.therm.init_therm_setup_hw != NULL) {
 		err = g->ops.therm.init_therm_setup_hw(g);
-	if (err != 0)
+	}
+	if (err != 0) {
 		return err;
+	}
 
 #ifdef CONFIG_DEBUG_FS
 	if (g->ops.therm.therm_debugfs_init)

drivers/gpu/nvgpu/common/therm/therm_gm20b.c

@@ -124,8 +124,9 @@ void gm20b_therm_init_blcg_mode(struct gk20a *g, u32 mode, u32 engine)
 {
 	u32 gate_ctrl;
 
-	if (!nvgpu_is_enabled(g, NVGPU_GPU_CAN_BLCG))
+	if (!nvgpu_is_enabled(g, NVGPU_GPU_CAN_BLCG)) {
 		return;
+	}
 
 	gate_ctrl = gk20a_readl(g, therm_gate_ctrl_r(engine));
 
@@ -155,8 +156,9 @@ void gm20b_therm_init_elcg_mode(struct gk20a *g, u32 mode, u32 engine)
 
 	gate_ctrl = gk20a_readl(g, therm_gate_ctrl_r(engine));
 
-	if (!nvgpu_is_enabled(g, NVGPU_GPU_CAN_ELCG))
+	if (!nvgpu_is_enabled(g, NVGPU_GPU_CAN_ELCG)) {
 		return;
+	}
 
 	switch (mode) {
 	case ELCG_RUN:

drivers/gpu/nvgpu/common/therm/therm_gv11b.c

@@ -102,8 +102,9 @@ void gv11b_therm_init_elcg_mode(struct gk20a *g, u32 mode, u32 engine)
 {
 	u32 gate_ctrl;
 
-	if (!nvgpu_is_enabled(g, NVGPU_GPU_CAN_ELCG))
+	if (!nvgpu_is_enabled(g, NVGPU_GPU_CAN_ELCG)) {
 		return;
+	}
 
 	gate_ctrl = gk20a_readl(g, therm_gate_ctrl_r(engine));
 

drivers/gpu/nvgpu/gk20a/gk20a.c

@@ -282,9 +282,10 @@ int gk20a_finalize_poweron(struct gk20a *g)
 	nvgpu_mutex_acquire(&g->tpc_pg_lock);
 
 	if (g->can_tpc_powergate) {
-		if (g->ops.gr.powergate_tpc != NULL)
+		if (g->ops.gr.powergate_tpc != NULL) {
 			g->ops.gr.powergate_tpc(g);
 		}
+	}
 
 	err = gk20a_enable_gr_hw(g);
 	if (err != 0) {

drivers/gpu/nvgpu/gk20a/gr_pri_gk20a.h

@@ -70,9 +70,10 @@ static inline u32 pri_get_gpc_num(struct gk20a *g, u32 addr)
 	u32 gpc_stride = nvgpu_get_litter_value(g, GPU_LIT_GPC_STRIDE);
 	for (i = 0; i < num_gpcs; i++) {
 		start = gpc_base + (i * gpc_stride);
-		if ((addr >= start) && (addr < (start + gpc_stride)))
+		if ((addr >= start) && (addr < (start + gpc_stride))) {
 			return i;
 		}
+	}
 	return 0;
 }
 
@@ -198,9 +199,10 @@ static inline u32 pri_get_be_num(struct gk20a *g, u32 addr)
 	u32 rop_stride = nvgpu_get_litter_value(g, GPU_LIT_ROP_STRIDE);
 	for (i = 0; i < num_fbps; i++) {
 		start = rop_base + (i * rop_stride);
-		if ((addr >= start) && (addr < (start + rop_stride)))
+		if ((addr >= start) && (addr < (start + rop_stride))) {
 			return i;
 		}
+	}
 	return 0;
 }
 

drivers/gpu/nvgpu/gp106/clk_arb_gp106.c

@@ -133,14 +133,16 @@ int gp106_init_clk_arbiter(struct gk20a *g)
 	}
 
 	arb = nvgpu_kzalloc(g, sizeof(struct nvgpu_clk_arb));
-	if (arb == NULL)
+	if (arb == NULL) {
 		return -ENOMEM;
+	}
 
 	arb->clk_arb_events_supported = true;
 
 	err = nvgpu_mutex_init(&arb->pstate_lock);
-	if (err != 0)
+	if (err != 0) {
 		goto mutex_fail;
+	}
 	nvgpu_spinlock_init(&arb->sessions_lock);
 	nvgpu_spinlock_init(&arb->users_lock);
 	nvgpu_spinlock_init(&arb->requests_lock);
@@ -206,8 +208,9 @@ int gp106_init_clk_arbiter(struct gk20a *g)
 	nvgpu_atomic64_set(&arb->alarm_mask, 0);
 	err = nvgpu_clk_notification_queue_alloc(g, &arb->notification_queue,
 		DEFAULT_EVENT_NUMBER);
-	if (err < 0)
+	if (err < 0) {
 		goto init_fail;
+	}
 
 	nvgpu_init_list_node(&arb->users);
 	nvgpu_init_list_node(&arb->sessions);
@@ -223,8 +226,9 @@ int gp106_init_clk_arbiter(struct gk20a *g)
 	arb->update_arb_work_item.item_type = CLK_ARB_WORK_UPDATE_ARB;
 
 	err = nvgpu_clk_arb_worker_init(g);
-	if (err < 0)
+	if (err < 0) {
 		goto init_fail;
+	}
 
 #ifdef CONFIG_DEBUG_FS
 	arb->debug = &arb->debug_pool[0];
@@ -235,12 +239,14 @@ int gp106_init_clk_arbiter(struct gk20a *g)
 	}
 #endif
 	err = clk_vf_point_cache(g);
-	if (err < 0)
+	if (err < 0) {
 		goto init_fail;
+	}
 
 	err = nvgpu_clk_arb_update_vf_table(arb);
-	if (err < 0)
+	if (err < 0) {
 		goto init_fail;
+	}
 	do {
 		/* Check that first run is completed */
 		nvgpu_smp_mb();
@@ -292,8 +298,9 @@ static u8 nvgpu_clk_arb_find_vf_point(struct nvgpu_clk_arb *arb,
 		/* pointer to table can be updated by callback */
 		nvgpu_smp_rmb();
 
-		if (table == NULL)
+		if (table == NULL) {
 			continue;
+		}
 		if ((table->gpc2clk_num_points == 0U) ||
 		    (table->mclk_num_points == 0U)) {
 			nvgpu_err(arb->g, "found empty table");
@@ -420,29 +427,35 @@ static int nvgpu_clk_arb_change_vf_point(struct gk20a *g, u16 gpc2clk_target,
 	/* descending */
 	if (voltuv < arb->voltuv_actual) {
 		status = g->ops.clk.mclk_change(g, mclk_target);
-		if (status < 0)
+		if (status < 0) {
 			return status;
+		}
 
 		status = volt_set_voltage(g, voltuv, voltuv_sram);
-		if (status < 0)
+		if (status < 0) {
 			return status;
+		}
 
 		status = clk_set_fll_clks(g, &fllclk);
-		if (status < 0)
+		if (status < 0) {
 			return status;
+		}
 	} else {
 		status = clk_set_fll_clks(g, &fllclk);
-		if (status < 0)
+		if (status < 0) {
 			return status;
+		}
 
 		status = volt_set_voltage(g, voltuv, voltuv_sram);
-		if (status < 0)
+		if (status < 0) {
 			return status;
+		}
 
 		status = g->ops.clk.mclk_change(g, mclk_target);
-		if (status < 0)
+		if (status < 0) {
 			return status;
 		}
+	}
 
 	return 0;
 }
@@ -477,8 +490,9 @@ void gp106_clk_arb_run_arbiter_cb(struct nvgpu_clk_arb *arb)
 	clk_arb_dbg(g, " ");
 
 	/* bail out if gpu is down */
-	if (nvgpu_atomic64_read(&arb->alarm_mask) & EVENT(ALARM_GPU_LOST))
+	if (nvgpu_atomic64_read(&arb->alarm_mask) & EVENT(ALARM_GPU_LOST)) {
 		goto exit_arb;
+	}
 
 #ifdef CONFIG_DEBUG_FS
 	g->ops.ptimer.read_ptimer(g, &t0);
@@ -543,20 +557,24 @@ void gp106_clk_arb_run_arbiter_cb(struct nvgpu_clk_arb *arb)
 	gpc2clk_target = (gpc2clk_target > 0) ? gpc2clk_target :
 			arb->gpc2clk_default_mhz;
 
-	if (gpc2clk_target < arb->gpc2clk_min)
+	if (gpc2clk_target < arb->gpc2clk_min) {
 		gpc2clk_target = arb->gpc2clk_min;
+	}
 
-	if (gpc2clk_target > arb->gpc2clk_max)
+	if (gpc2clk_target > arb->gpc2clk_max) {
 		gpc2clk_target = arb->gpc2clk_max;
+	}
 
 	mclk_target = (mclk_target > 0) ? mclk_target :
 			arb->mclk_default_mhz;
 
-	if (mclk_target < arb->mclk_min)
+	if (mclk_target < arb->mclk_min) {
 		mclk_target = arb->mclk_min;
+	}
 
-	if (mclk_target > arb->mclk_max)
+	if (mclk_target > arb->mclk_max) {
 		mclk_target = arb->mclk_max;
+	}
 
 	sys2clk_target = 0;
 	xbar2clk_target = 0;
@@ -577,9 +595,10 @@ void gp106_clk_arb_run_arbiter_cb(struct nvgpu_clk_arb *arb)
 	}
 
 	if ((gpc2clk_target < gpc2clk_session_target) ||
-			(mclk_target < mclk_session_target))
+			(mclk_target < mclk_session_target)) {
 		nvgpu_clk_arb_set_global_alarm(g,
 			EVENT(ALARM_TARGET_VF_NOT_POSSIBLE));
+	}
 
 	if ((arb->actual->gpc2clk == gpc2clk_target) &&
 		(arb->actual->mclk == mclk_target) &&

drivers/gpu/nvgpu/gp106/clk_gp106.c

@@ -248,11 +248,13 @@ int gp106_clk_domain_get_f_points(
 	u8 i;
 	struct clk_pmupstate *pclk = &g->clk_pmu;
 
-	if (pfpointscount == NULL)
+	if (pfpointscount == NULL) {
 		return -EINVAL;
+	}
 
-	if ((pfreqpointsinmhz == NULL) && (*pfpointscount != 0))
+	if ((pfreqpointsinmhz == NULL) && (*pfpointscount != 0)) {
 		return -EINVAL;
+	}
 
 	BOARDOBJGRP_FOR_EACH(&(pclk->clk_domainobjs.super.super),
 			struct clk_domain *, pdomain, i) {

drivers/gpu/nvgpu/gv100/gr_gv100.c

@@ -76,8 +76,9 @@ static int gr_gv100_scg_estimate_perf(struct gk20a *g,
 	u32 *num_tpc_gpc = nvgpu_kzalloc(g, sizeof(u32) *
 				nvgpu_get_litter_value(g, GPU_LIT_NUM_GPCS));
 
-	if (!num_tpc_gpc)
+	if (!num_tpc_gpc) {
 		return -ENOMEM;
+	}
 
 	/* Calculate pix-perf-reduction-rate per GPC and find bottleneck TPC */
 	for (gpc_id = 0; gpc_id < gr->gpc_count; gpc_id++) {
@@ -111,8 +112,9 @@ static int gr_gv100_scg_estimate_perf(struct gk20a *g,
 		scg_gpc_pix_perf = scale_factor * num_tpc_gpc[gpc_id] /
 					gr->gpc_tpc_count[gpc_id];
 
-		if (min_scg_gpc_pix_perf > scg_gpc_pix_perf)
+		if (min_scg_gpc_pix_perf > scg_gpc_pix_perf) {
 			min_scg_gpc_pix_perf = scg_gpc_pix_perf;
+		}
 
 		/* Calculate # of surviving PES */
 		for (pes_id = 0; pes_id < gr->gpc_ppc_count[gpc_id]; pes_id++) {
@@ -130,10 +132,11 @@ static int gr_gv100_scg_estimate_perf(struct gk20a *g,
 				num_tpc_mask &= ~(0x1 << disable_tpc_id);
 				is_tpc_removed_pes = true;
 			}
-			if (hweight32(num_tpc_mask))
+			if (hweight32(num_tpc_mask)) {
 				scg_num_pes++;
 			}
 		}
+	}
 
 	if (!is_tpc_removed_gpc || !is_tpc_removed_pes) {
 		err = -EINVAL;
@@ -151,8 +154,9 @@ static int gr_gv100_scg_estimate_perf(struct gk20a *g,
 	average_tpcs = scale_factor * average_tpcs / gr->gpc_count;
 	for (gpc_id =0; gpc_id < gr->gpc_count; gpc_id++) {
 		diff = average_tpcs - scale_factor * num_tpc_gpc[gpc_id];
-		if (diff < 0)
+		if (diff < 0) {
 			diff = -diff;
+		}
 		deviation += diff;
 	}
 
@@ -194,9 +198,10 @@ void gr_gv100_cb_size_default(struct gk20a *g)
 {
 	struct gr_gk20a *gr = &g->gr;
 
-	if (!gr->attrib_cb_default_size)
+	if (!gr->attrib_cb_default_size) {
 		gr->attrib_cb_default_size =
 			gr_gpc0_ppc0_cbm_beta_cb_size_v_default_v();
+	}
 	gr->alpha_cb_default_size =
 		gr_gpc0_ppc0_cbm_alpha_cb_size_v_default_v();
 }
@@ -373,8 +378,9 @@ int gr_gv100_add_ctxsw_reg_pm_fbpa(struct gk20a *g,
 	u32 off = *offset;
 	u32 active_fbpa_mask;
 
-	if ((cnt + (regs->count * num_fbpas)) > max_cnt)
+	if ((cnt + (regs->count * num_fbpas)) > max_cnt) {
 		return -EINVAL;
+	}
 
 	active_fbpa_mask = gr_gv100_get_active_fpba_mask(g);
 

drivers/gpu/nvgpu/gv100/hal_gv100.c

@@ -278,8 +278,9 @@ int gv100_init_gpu_characteristics(struct gk20a *g)
 	int err;
 
 	err = gk20a_init_gpu_characteristics(g);
-	if (err != 0)
+	if (err != 0) {
 		return err;
+	}
 
 	__nvgpu_set_enabled(g, NVGPU_SUPPORT_TSG_SUBCONTEXTS, true);
 	__nvgpu_set_enabled(g, NVGPU_SUPPORT_GET_TEMPERATURE, true);

drivers/gpu/nvgpu/gv100/pmu_gv100.c

@@ -53,12 +53,14 @@ int gv100_load_falcon_ucode(struct gk20a *g, u32 falconidmask)
 	u32 flags = PMU_ACR_CMD_BOOTSTRAP_FALCON_FLAGS_RESET_YES;
 	int status = 0;
 
-	if (falconidmask == 0)
+	if (falconidmask == 0) {
 		return -EINVAL;
+	}
 
 	if (falconidmask & ~((1 << LSF_FALCON_ID_FECS) |
-		(1 << LSF_FALCON_ID_GPCCS)))
+		(1 << LSF_FALCON_ID_GPCCS))) {
 		return -EINVAL;
+	}
 
 	g->pmu_lsf_loaded_falcon_id = 0;
 	/* check whether pmu is ready to bootstrap lsf if not wait for it */
@@ -90,8 +92,9 @@ int gv100_load_falcon_ucode(struct gk20a *g, u32 falconidmask)
 	pmu_wait_message_cond(&g->pmu, gk20a_get_gr_idle_timeout(g),
 		&g->pmu_lsf_loaded_falcon_id, 1);
 
-	if (g->pmu_lsf_loaded_falcon_id != 1)
+	if (g->pmu_lsf_loaded_falcon_id != 1) {
 		status =  -ETIMEDOUT;
+	}
 
 exit:
 	return status;

drivers/gpu/nvgpu/include/nvgpu/gmmu.h

@@ -261,10 +261,11 @@ int __nvgpu_set_pte(struct gk20a *g, struct vm_gk20a *vm, u64 vaddr, u32 *pte);
  */
 #define pte_dbg(g, attrs, fmt, args...)					\
 	do {								\
-		if (((attrs) != NULL) && ((attrs)->debug))		\
+		if (((attrs) != NULL) && ((attrs)->debug)) {		\
 			nvgpu_info(g, fmt, ##args);			\
-		else							\
+		} else {						\
 			nvgpu_log(g, gpu_dbg_pte, fmt, ##args);		\
+		}							\
 	} while (0)
 
 #endif /* NVGPU_GMMU_H */

drivers/gpu/nvgpu/os/linux/dmabuf.c

@@ -90,8 +90,9 @@ struct sg_table *gk20a_mm_pin(struct device *dev, struct dma_buf *dmabuf,
 	struct gk20a_dmabuf_priv *priv;
 
 	priv = dma_buf_get_drvdata(dmabuf, dev);
-	if (WARN_ON(!priv))
+	if (WARN_ON(!priv)) {
 		return ERR_PTR(-EINVAL);
+	}
 
 	nvgpu_mutex_acquire(&priv->lock);
 
@@ -182,16 +183,18 @@ int gk20a_dmabuf_get_state(struct dma_buf *dmabuf, struct gk20a *g,
 	struct gk20a_buffer_state *s;
 	struct device *dev = dev_from_gk20a(g);
 
-	if (WARN_ON(offset >= (u64)dmabuf->size))
+	if (WARN_ON(offset >= (u64)dmabuf->size)) {
 		return -EINVAL;
+	}
 
 	err = gk20a_dmabuf_alloc_drvdata(dmabuf, dev);
 	if (err)
 		return err;
 
 	priv = dma_buf_get_drvdata(dmabuf, dev);
-	if (WARN_ON(!priv))
+	if (WARN_ON(!priv)) {
 		return -ENOSYS;
+	}
 
 	nvgpu_mutex_acquire(&priv->lock);
 

drivers/gpu/nvgpu/os/linux/ioctl_ctrl.c

@@ -938,12 +938,14 @@ static int nvgpu_gpu_alloc_vidmem(struct gk20a *g,
 	nvgpu_log_fn(g, " ");
 
 	/* not yet supported */
-	if (WARN_ON(args->in.flags & NVGPU_GPU_ALLOC_VIDMEM_FLAG_CPU_MASK))
+	if (WARN_ON(args->in.flags & NVGPU_GPU_ALLOC_VIDMEM_FLAG_CPU_MASK)) {
 		return -EINVAL;
+	}
 
 	/* not yet supported */
-	if (WARN_ON(args->in.flags & NVGPU_GPU_ALLOC_VIDMEM_FLAG_VPR))
+	if (WARN_ON(args->in.flags & NVGPU_GPU_ALLOC_VIDMEM_FLAG_VPR)) {
 		return -EINVAL;
+	}
 
 	if (args->in.size & (SZ_4K - 1))
 		return -EINVAL;

drivers/gpu/nvgpu/vgpu/gp10b/vgpu_mm_gp10b.c

@@ -83,8 +83,9 @@ u64 vgpu_gp10b_locked_gmmu_map(struct vm_gk20a *vm,
 
 	/* FIXME: add support for sparse mappings */
 
-	if (WARN_ON(!sgt) || WARN_ON(nvgpu_iommuable(g)))
+	if (WARN_ON(!sgt) || WARN_ON(nvgpu_iommuable(g))) {
 		return 0;
+	}
 
 	if (space_to_skip & (page_size - 1))
 		return 0;

drivers/gpu/nvgpu/vgpu/vgpu.c

@@ -161,8 +161,9 @@ int vgpu_intr_thread(void *dev_id)
 					(void **)&msg, &size, &sender);
 		if (err == -ETIME)
 			continue;
-		if (WARN_ON(err))
+		if (WARN_ON(err)) {
 			continue;
+		}
 
 		if (msg->event == TEGRA_VGPU_EVENT_ABORT) {
 			vgpu_ivc_release(handle);