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Subject[V2] drm: msm: adreno: use IS_ERR() instead of null pointer check
Date
a6xx_gmu_get_mmio() never return null in case of error, but ERR_PTR(), so 
we should use IS_ERR() instead of null pointer check and IS_ERR_OR_NULL().

Signed-off-by: Wang Qing <wangqing@vivo.com>
---
drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
index 491fee4..82420f7
--- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
@@ -492,7 +492,7 @@ static void a6xx_gmu_rpmh_init(struct a6xx_gmu *gmu)
void __iomem *seqptr = a6xx_gmu_get_mmio(pdev, "gmu_pdc_seq");
uint32_t pdc_address_offset;

- if (!pdcptr || !seqptr)
+ if (IS_ERR(pdcptr) || IS_ERR(seqptr))
goto err;

if (adreno_is_a618(adreno_gpu) || adreno_is_a640(adreno_gpu))
@@ -580,9 +580,9 @@ static void a6xx_gmu_rpmh_init(struct a6xx_gmu *gmu)
wmb();

err:
- if (!IS_ERR_OR_NULL(pdcptr))
+ if (!IS_ERR(pdcptr))
iounmap(pdcptr);
- if (!IS_ERR_OR_NULL(seqptr))
+ if (!IS_ERR(seqptr))
iounmap(seqptr);
}

--
2.7.4
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