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gpu: nvgpu: Submit coverity fixes

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Clear ioctl buffer and fix double free, and error case memory leak.

Bug 200059216

Change-Id: I21cc2b0f6a7e8fca09f72caf4c54d570b13f400b
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/655347
This commit is contained in:
Terje Bergstrom
2014-11-25 13:54:03 +02:00
committed by Dan Willemsen
parent 0fd396a87d
commit 383f176a9d
6 changed files with 5 additions and 1 deletions
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drivers/gpu/nvgpu/gk20a/dbg_gpu_gk20a.c
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@@ -388,6 +388,7 @@ long gk20a_dbg_gpu_dev_ioctl(struct file *filp, unsigned int cmd,
BUG_ON(_IOC_SIZE(cmd) > NVGPU_DBG_GPU_IOCTL_MAX_ARG_SIZE);
memset(buf, 0, sizeof(buf));
if (_IOC_DIR(cmd) & _IOC_WRITE) {
if (copy_from_user(buf, (void __user *)arg, _IOC_SIZE(cmd)))
return -EFAULT;