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gpu: nvgpu: Fix LibC MISRA 17.7 in os/linux

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MISRA Rule-17.7 requires the return value of all functions to be used.
Fix is either to use the return value or change the function to return
void. This patch contains fix for all 17.7 violations instandard C functions
in OS/Linux interface.

JIRA NVGPU-1036

Change-Id: I39b20f1d0e1a1da56d452f2c3d5ee049666cefe8
Signed-off-by: Nicolas Benech <nbenech@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1929900
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: svc-misra-checker <svc-misra-checker@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Nicolas Benech
2018-10-18 10:50:51 -04:00
committed by mobile promotions
parent e059f3cb12
commit b9e7ea65e1
26 changed files with 69 additions and 63 deletions
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6
drivers/gpu/nvgpu/os/linux/ioctl_clk_arb.c
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@@ -198,7 +198,7 @@ static ssize_t nvgpu_clk_arb_read_event_dev(struct file *filp, char __user *buf,
if ((size - *off) < sizeof(info))
return 0;
memset(&info, 0, sizeof(info));
(void) memset(&info, 0, sizeof(info));
/* Get the oldest event from the queue */
while (!__pending_event(dev, &info)) {
if (filp->f_flags & O_NONBLOCK)
@@ -257,7 +257,7 @@ static long nvgpu_clk_arb_ioctl_event_dev(struct file *filp, unsigned int cmd,
BUG_ON(_IOC_SIZE(cmd) > NVGPU_EVENT_IOCTL_MAX_ARG_SIZE);
memset(buf, 0, sizeof(buf));
(void) memset(buf, 0, sizeof(buf));
if (_IOC_DIR(cmd) & _IOC_WRITE) {
if (copy_from_user(buf, (void __user *) arg, _IOC_SIZE(cmd)))
return -EFAULT;
@@ -327,7 +327,7 @@ static int nvgpu_clk_arb_install_fd(struct gk20a *g,
goto fail;
}
snprintf(name, sizeof(name), "%s-clk-fd%d", g->name, fd);
(void) snprintf(name, sizeof(name), "%s-clk-fd%d", g->name, fd);
file = anon_inode_getfile(name, fops, dev, O_RDWR);
if (IS_ERR(file)) {
err = PTR_ERR(file);