gpu: nvgpu: fix -EINVAL retval in ioctls

Proper error number for invalid request number is EINVAL instead of
EFAULT, so change it in ioctl calls.

Change-Id: I8fddd34e012700550e9e30fe17ba7152b3a0417b
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: http://git-master/r/542563
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/dbg_gpu_gk20a.c b/drivers/gpu/nvgpu/gk20a/dbg_gpu_gk20a.c
index 686987c0..1fefb659 100644
--- a/drivers/gpu/nvgpu/gk20a/dbg_gpu_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/dbg_gpu_gk20a.c
@@ -372,7 +372,7 @@ long gk20a_dbg_gpu_dev_ioctl(struct file *filp, unsigned int cmd,
         if ((_IOC_TYPE(cmd) != NVHOST_DBG_GPU_IOCTL_MAGIC) ||
             (_IOC_NR(cmd) == 0) ||
             (_IOC_NR(cmd) > NVHOST_DBG_GPU_IOCTL_LAST))
-                return -EFAULT;
+                return -EINVAL;
 
         BUG_ON(_IOC_SIZE(cmd) > NVHOST_DBG_GPU_IOCTL_MAX_ARG_SIZE);