* [PATCH] drivers: gpu: drm: exynos: Replaced kzalloc & memcpy with kmemdup
@ 2013-03-11 19:25 Alexandru Gheorghiu
2013-03-12 2:08 ` 김승우
2013-03-12 4:12 ` Inki Dae
0 siblings, 2 replies; 3+ messages in thread
From: Alexandru Gheorghiu @ 2013-03-11 19:25 UTC (permalink / raw)
To: Inki Dae
Cc: Joonyoung Shim, Seung-Woo Kim, Kyungmin Park, David Airlie,
dri-devel, linux-kernel, Alexandru Gheorghiu
Replaced calls to kzalloc followed by memcpy with call to kmemdup.
Patch found using coccinelle.
Signed-off-by: Alexandru Gheorghiu <gheorghiuandru@gmail.com>
---
drivers/gpu/drm/exynos/exynos_drm_vidi.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_vidi.c b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
index 13ccbd4..9504b0c 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_vidi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
@@ -117,13 +117,12 @@ static struct edid *vidi_get_edid(struct device *dev,
}
edid_len = (1 + ctx->raw_edid->extensions) * EDID_LENGTH;
- edid = kzalloc(edid_len, GFP_KERNEL);
+ edid = kmemdup(ctx->raw_edid, edid_len, GFP_KERNEL);
if (!edid) {
DRM_DEBUG_KMS("failed to allocate edid\n");
return ERR_PTR(-ENOMEM);
}
- memcpy(edid, ctx->raw_edid, edid_len);
return edid;
}
@@ -563,12 +562,11 @@ int vidi_connection_ioctl(struct drm_device *drm_dev, void *data,
return -EINVAL;
}
edid_len = (1 + raw_edid->extensions) * EDID_LENGTH;
- ctx->raw_edid = kzalloc(edid_len, GFP_KERNEL);
+ ctx->raw_edid = kmemdup(raw_edid, edid_len, GFP_KERNEL);
if (!ctx->raw_edid) {
DRM_DEBUG_KMS("failed to allocate raw_edid.\n");
return -ENOMEM;
}
- memcpy(ctx->raw_edid, raw_edid, edid_len);
} else {
/*
* with connection = 0, free raw_edid
--
1.7.9.5
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] drivers: gpu: drm: exynos: Replaced kzalloc & memcpy with kmemdup
2013-03-11 19:25 [PATCH] drivers: gpu: drm: exynos: Replaced kzalloc & memcpy with kmemdup Alexandru Gheorghiu
@ 2013-03-12 2:08 ` 김승우
2013-03-12 4:12 ` Inki Dae
1 sibling, 0 replies; 3+ messages in thread
From: 김승우 @ 2013-03-12 2:08 UTC (permalink / raw)
To: Alexandru Gheorghiu
Cc: Inki Dae, linux-kernel, dri-devel, Kyungmin Park, sw0312.kim
Good point.
Acked-by: Seung-Woo Kim <sw0312.kim@samsung.com>
On 2013년 03월 12일 04:25, Alexandru Gheorghiu wrote:
> Replaced calls to kzalloc followed by memcpy with call to kmemdup.
> Patch found using coccinelle.
>
> Signed-off-by: Alexandru Gheorghiu <gheorghiuandru@gmail.com>
> ---
> drivers/gpu/drm/exynos/exynos_drm_vidi.c | 6 ++----
> 1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_vidi.c b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
> index 13ccbd4..9504b0c 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_vidi.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
> @@ -117,13 +117,12 @@ static struct edid *vidi_get_edid(struct device *dev,
> }
>
> edid_len = (1 + ctx->raw_edid->extensions) * EDID_LENGTH;
> - edid = kzalloc(edid_len, GFP_KERNEL);
> + edid = kmemdup(ctx->raw_edid, edid_len, GFP_KERNEL);
> if (!edid) {
> DRM_DEBUG_KMS("failed to allocate edid\n");
> return ERR_PTR(-ENOMEM);
> }
>
> - memcpy(edid, ctx->raw_edid, edid_len);
> return edid;
> }
>
> @@ -563,12 +562,11 @@ int vidi_connection_ioctl(struct drm_device *drm_dev, void *data,
> return -EINVAL;
> }
> edid_len = (1 + raw_edid->extensions) * EDID_LENGTH;
> - ctx->raw_edid = kzalloc(edid_len, GFP_KERNEL);
> + ctx->raw_edid = kmemdup(raw_edid, edid_len, GFP_KERNEL);
> if (!ctx->raw_edid) {
> DRM_DEBUG_KMS("failed to allocate raw_edid.\n");
> return -ENOMEM;
> }
> - memcpy(ctx->raw_edid, raw_edid, edid_len);
> } else {
> /*
> * with connection = 0, free raw_edid
>
--
Seung-Woo Kim
Samsung Software R&D Center
--
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] drivers: gpu: drm: exynos: Replaced kzalloc & memcpy with kmemdup
2013-03-11 19:25 [PATCH] drivers: gpu: drm: exynos: Replaced kzalloc & memcpy with kmemdup Alexandru Gheorghiu
2013-03-12 2:08 ` 김승우
@ 2013-03-12 4:12 ` Inki Dae
1 sibling, 0 replies; 3+ messages in thread
From: Inki Dae @ 2013-03-12 4:12 UTC (permalink / raw)
To: Alexandru Gheorghiu; +Cc: Seung-Woo Kim, linux-kernel, dri-devel, Kyungmin Park
Applied.
Thanks,
Inki Dae
2013/3/12 Alexandru Gheorghiu <gheorghiuandru@gmail.com>:
> Replaced calls to kzalloc followed by memcpy with call to kmemdup.
> Patch found using coccinelle.
>
> Signed-off-by: Alexandru Gheorghiu <gheorghiuandru@gmail.com>
> ---
> drivers/gpu/drm/exynos/exynos_drm_vidi.c | 6 ++----
> 1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_vidi.c b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
> index 13ccbd4..9504b0c 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_vidi.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
> @@ -117,13 +117,12 @@ static struct edid *vidi_get_edid(struct device *dev,
> }
>
> edid_len = (1 + ctx->raw_edid->extensions) * EDID_LENGTH;
> - edid = kzalloc(edid_len, GFP_KERNEL);
> + edid = kmemdup(ctx->raw_edid, edid_len, GFP_KERNEL);
> if (!edid) {
> DRM_DEBUG_KMS("failed to allocate edid\n");
> return ERR_PTR(-ENOMEM);
> }
>
> - memcpy(edid, ctx->raw_edid, edid_len);
> return edid;
> }
>
> @@ -563,12 +562,11 @@ int vidi_connection_ioctl(struct drm_device *drm_dev, void *data,
> return -EINVAL;
> }
> edid_len = (1 + raw_edid->extensions) * EDID_LENGTH;
> - ctx->raw_edid = kzalloc(edid_len, GFP_KERNEL);
> + ctx->raw_edid = kmemdup(raw_edid, edid_len, GFP_KERNEL);
> if (!ctx->raw_edid) {
> DRM_DEBUG_KMS("failed to allocate raw_edid.\n");
> return -ENOMEM;
> }
> - memcpy(ctx->raw_edid, raw_edid, edid_len);
> } else {
> /*
> * with connection = 0, free raw_edid
> --
> 1.7.9.5
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 3+ messages in thread
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2013-03-11 19:25 [PATCH] drivers: gpu: drm: exynos: Replaced kzalloc & memcpy with kmemdup Alexandru Gheorghiu
2013-03-12 2:08 ` 김승우
2013-03-12 4:12 ` Inki Dae
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