Re: [PATCH] drm/msm/dpu: Fix usage of ERR_PTR()

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



ping for this obvious fix...

On 2020/5/28 21:08, Zenghui Yu wrote:
ERR_PTR() is used in the kernel to encode an usual *negative* errno code
into a pointer.  Passing a positive value (ENOMEM) to it will break the
following IS_ERR() check.

Though memory allocation is unlikely to fail, it's still worth fixing.
And grepping shows that this is the only misuse of ERR_PTR() in kernel.

Fixes: 25fdd5933e4c ("drm/msm: Add SDM845 DPU support")
Signed-off-by: Zenghui Yu <yuzenghui@xxxxxxxxxx>
---
  drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
index a1b79ee2bd9d..a2f6b688a976 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@ -2173,7 +2173,7 @@ struct drm_encoder *dpu_encoder_init(struct drm_device *dev,
dpu_enc = devm_kzalloc(dev->dev, sizeof(*dpu_enc), GFP_KERNEL);
  	if (!dpu_enc)
-		return ERR_PTR(ENOMEM);
+		return ERR_PTR(-ENOMEM);
rc = drm_encoder_init(dev, &dpu_enc->base, &dpu_encoder_funcs,
  			drm_enc_mode, NULL);




[Index of Archives]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [Linux for Sparc]     [IETF Annouce]     [Security]     [Bugtraq]     [Linux MIPS]     [ECOS]     [Asterisk Internet PBX]     [Linux API]

  Powered by Linux