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Subject[PATCH 4.19 133/639] drm/etnaviv: NULL vs IS_ERR() buf in etnaviv_core_dump()
Date
From: Dan Carpenter <dan.carpenter@oracle.com>

[ Upstream commit f8261c376e7f8cb9024af5a6c54be540c7f9108e ]

The etnaviv_gem_get_pages() never returns NULL. It returns error
pointers on error.

Fixes: a8c21a5451d8 ("drm/etnaviv: add initial etnaviv DRM driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/etnaviv/etnaviv_dump.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/etnaviv/etnaviv_dump.c b/drivers/gpu/drm/etnaviv/etnaviv_dump.c
index 468dff2f79040..9d839b4fd8f78 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_dump.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_dump.c
@@ -217,7 +217,7 @@ void etnaviv_core_dump(struct etnaviv_gpu *gpu)
mutex_lock(&obj->lock);
pages = etnaviv_gem_get_pages(obj);
mutex_unlock(&obj->lock);
- if (pages) {
+ if (!IS_ERR(pages)) {
int j;

iter.hdr->data[0] = bomap - bomap_start;
--
2.20.1


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