[PATCH] drm/radeon: Fix ENOSYS with better fitting error codes in radeon_gem.c

[Srinivasan Shanmugam]

Replace the error code from 'ENOSYS' to 'EOPNOTSUPP' for unimplemented
radeon_gem_pread_ioctl & radeon_gem_pwrite_ioctl

Fixes the following:

WARNING: ENOSYS means 'invalid syscall nr' and nothing else.

Cc: Christian König <christian.koenig at amd.com>
Cc: Alex Deucher <alexander.deucher at amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam at amd.com>
---
 drivers/gpu/drm/radeon/radeon_gem.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c
index d0119c5f7eb3..358d19242f4b 100644
--- a/drivers/gpu/drm/radeon/radeon_gem.c
+++ b/drivers/gpu/drm/radeon/radeon_gem.c
@@ -316,7 +316,7 @@ int radeon_gem_pread_ioctl(struct drm_device *dev, void *data,
 {
 	/* TODO: implement */
 	DRM_ERROR("unimplemented %s\n", __func__);
-	return -ENOSYS;
+	return -EOPNOTSUPP;
 }
 
 int radeon_gem_pwrite_ioctl(struct drm_device *dev, void *data,
@@ -324,7 +324,7 @@ int radeon_gem_pwrite_ioctl(struct drm_device *dev, void *data,
 {
 	/* TODO: implement */
 	DRM_ERROR("unimplemented %s\n", __func__);
-	return -ENOSYS;
+	return -EOPNOTSUPP;
 }
 
 int radeon_gem_create_ioctl(struct drm_device *dev, void *data,
-- 
2.25.1