* [PATCH] bus: mhi: host: Free mhi_buf vector inside mhi_alloc_bhie_table()
@ 2024-10-24 21:47 Youssef Samir
2024-10-24 21:48 ` Jeffrey Hugo
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: Youssef Samir @ 2024-10-24 21:47 UTC (permalink / raw)
To: manivannan.sadhasivam; +Cc: mhi, linux-arm-msm, linux-kernel, Jeffrey Hugo
mhi_alloc_bhie_table() starts by allocating a vector of struct mhi_buf
then it allocates a DMA buffer for each element. If allocation fails,
it will free the allocated DMA buffers, but it neglects freeing the
mhi_buf vector.
Avoid memory leaks by freeing the mhi_buf vector on error.
Fixes: 3000f85b8f47 ("bus: mhi: core: Add support for basic PM operations")
Signed-off-by: Youssef Samir <quic_yabdulra@quicinc.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
---
drivers/bus/mhi/host/boot.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/bus/mhi/host/boot.c b/drivers/bus/mhi/host/boot.c
index 21bf042db9be..2e9ef55a566a 100644
--- a/drivers/bus/mhi/host/boot.c
+++ b/drivers/bus/mhi/host/boot.c
@@ -415,6 +415,7 @@ int mhi_alloc_bhie_table(struct mhi_controller *mhi_cntrl,
for (--i, --mhi_buf; i >= 0; i--, mhi_buf--)
dma_free_coherent(mhi_cntrl->cntrl_dev, mhi_buf->len,
mhi_buf->buf, mhi_buf->dma_addr);
+ kfree(img_info->mhi_buf);
error_alloc_mhi_buf:
kfree(img_info);
--
2.25.1
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH] bus: mhi: host: Free mhi_buf vector inside mhi_alloc_bhie_table()
2024-10-24 21:47 [PATCH] bus: mhi: host: Free mhi_buf vector inside mhi_alloc_bhie_table() Youssef Samir
@ 2024-10-24 21:48 ` Jeffrey Hugo
2024-11-15 6:06 ` Manivannan Sadhasivam
2024-11-15 6:07 ` Manivannan Sadhasivam
2 siblings, 0 replies; 4+ messages in thread
From: Jeffrey Hugo @ 2024-10-24 21:48 UTC (permalink / raw)
To: Youssef Samir, manivannan.sadhasivam; +Cc: mhi, linux-arm-msm, linux-kernel
On 10/24/2024 3:47 PM, Youssef Samir wrote:
> mhi_alloc_bhie_table() starts by allocating a vector of struct mhi_buf
> then it allocates a DMA buffer for each element. If allocation fails,
> it will free the allocated DMA buffers, but it neglects freeing the
> mhi_buf vector.
>
> Avoid memory leaks by freeing the mhi_buf vector on error.
>
> Fixes: 3000f85b8f47 ("bus: mhi: core: Add support for basic PM operations")
> Signed-off-by: Youssef Samir <quic_yabdulra@quicinc.com>
> Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
> ---
> drivers/bus/mhi/host/boot.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/bus/mhi/host/boot.c b/drivers/bus/mhi/host/boot.c
> index 21bf042db9be..2e9ef55a566a 100644
> --- a/drivers/bus/mhi/host/boot.c
> +++ b/drivers/bus/mhi/host/boot.c
> @@ -415,6 +415,7 @@ int mhi_alloc_bhie_table(struct mhi_controller *mhi_cntrl,
> for (--i, --mhi_buf; i >= 0; i--, mhi_buf--)
> dma_free_coherent(mhi_cntrl->cntrl_dev, mhi_buf->len,
> mhi_buf->buf, mhi_buf->dma_addr);
> + kfree(img_info->mhi_buf);
>
> error_alloc_mhi_buf:
> kfree(img_info);
Better :)
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH] bus: mhi: host: Free mhi_buf vector inside mhi_alloc_bhie_table()
2024-10-24 21:47 [PATCH] bus: mhi: host: Free mhi_buf vector inside mhi_alloc_bhie_table() Youssef Samir
2024-10-24 21:48 ` Jeffrey Hugo
@ 2024-11-15 6:06 ` Manivannan Sadhasivam
2024-11-15 6:07 ` Manivannan Sadhasivam
2 siblings, 0 replies; 4+ messages in thread
From: Manivannan Sadhasivam @ 2024-11-15 6:06 UTC (permalink / raw)
To: Youssef Samir; +Cc: mhi, linux-arm-msm, linux-kernel, Jeffrey Hugo
On Thu, Oct 24, 2024 at 11:47:15PM +0200, Youssef Samir wrote:
> mhi_alloc_bhie_table() starts by allocating a vector of struct mhi_buf
> then it allocates a DMA buffer for each element. If allocation fails,
> it will free the allocated DMA buffers, but it neglects freeing the
> mhi_buf vector.
>
> Avoid memory leaks by freeing the mhi_buf vector on error.
>
> Fixes: 3000f85b8f47 ("bus: mhi: core: Add support for basic PM operations")
> Signed-off-by: Youssef Samir <quic_yabdulra@quicinc.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
- Mani
> Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
> ---
> drivers/bus/mhi/host/boot.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/bus/mhi/host/boot.c b/drivers/bus/mhi/host/boot.c
> index 21bf042db9be..2e9ef55a566a 100644
> --- a/drivers/bus/mhi/host/boot.c
> +++ b/drivers/bus/mhi/host/boot.c
> @@ -415,6 +415,7 @@ int mhi_alloc_bhie_table(struct mhi_controller *mhi_cntrl,
> for (--i, --mhi_buf; i >= 0; i--, mhi_buf--)
> dma_free_coherent(mhi_cntrl->cntrl_dev, mhi_buf->len,
> mhi_buf->buf, mhi_buf->dma_addr);
> + kfree(img_info->mhi_buf);
>
> error_alloc_mhi_buf:
> kfree(img_info);
> --
> 2.25.1
>
--
மணிவண்ணன் சதாசிவம்
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH] bus: mhi: host: Free mhi_buf vector inside mhi_alloc_bhie_table()
2024-10-24 21:47 [PATCH] bus: mhi: host: Free mhi_buf vector inside mhi_alloc_bhie_table() Youssef Samir
2024-10-24 21:48 ` Jeffrey Hugo
2024-11-15 6:06 ` Manivannan Sadhasivam
@ 2024-11-15 6:07 ` Manivannan Sadhasivam
2 siblings, 0 replies; 4+ messages in thread
From: Manivannan Sadhasivam @ 2024-11-15 6:07 UTC (permalink / raw)
To: Youssef Samir; +Cc: mhi, linux-arm-msm, linux-kernel, Jeffrey Hugo
On Thu, Oct 24, 2024 at 11:47:15PM +0200, Youssef Samir wrote:
> mhi_alloc_bhie_table() starts by allocating a vector of struct mhi_buf
> then it allocates a DMA buffer for each element. If allocation fails,
> it will free the allocated DMA buffers, but it neglects freeing the
> mhi_buf vector.
>
> Avoid memory leaks by freeing the mhi_buf vector on error.
>
> Fixes: 3000f85b8f47 ("bus: mhi: core: Add support for basic PM operations")
> Signed-off-by: Youssef Samir <quic_yabdulra@quicinc.com>
Applied to mhi-next!
- Mani
> Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
> ---
> drivers/bus/mhi/host/boot.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/bus/mhi/host/boot.c b/drivers/bus/mhi/host/boot.c
> index 21bf042db9be..2e9ef55a566a 100644
> --- a/drivers/bus/mhi/host/boot.c
> +++ b/drivers/bus/mhi/host/boot.c
> @@ -415,6 +415,7 @@ int mhi_alloc_bhie_table(struct mhi_controller *mhi_cntrl,
> for (--i, --mhi_buf; i >= 0; i--, mhi_buf--)
> dma_free_coherent(mhi_cntrl->cntrl_dev, mhi_buf->len,
> mhi_buf->buf, mhi_buf->dma_addr);
> + kfree(img_info->mhi_buf);
>
> error_alloc_mhi_buf:
> kfree(img_info);
> --
> 2.25.1
>
--
மணிவண்ணன் சதாசிவம்
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2024-11-15 6:07 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2024-10-24 21:47 [PATCH] bus: mhi: host: Free mhi_buf vector inside mhi_alloc_bhie_table() Youssef Samir
2024-10-24 21:48 ` Jeffrey Hugo
2024-11-15 6:06 ` Manivannan Sadhasivam
2024-11-15 6:07 ` Manivannan Sadhasivam
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