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misc: fastrpc: fix memory leak when out of memory 

Do the necessary house-keeping if the allocated memory wont be used

Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
Link: https://lore.kernel.org/r/20190705081303.14170-1-jorge.ramirez-ortiz@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
alistair/sunxi64-5.4-dsi
Jorge Ramirez-Ortiz 2019-07-05 10:13:03 +02:00 committed by Greg Kroah-Hartman
parent 0854d589aa
commit 41db5f8397
1 changed files with 4 additions and 1 deletions
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5
drivers/misc/fastrpc.c
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@ -279,8 +279,11 @@ static int fastrpc_buf_alloc(struct fastrpc_user *fl, struct device *dev,
buf->virt = dma_alloc_coherent(dev, buf->size, (dma_addr_t *)&buf->phys,
GFP_KERNEL);
if (!buf->virt)
if (!buf->virt) {
mutex_destroy(&buf->lock);
kfree(buf);
return -ENOMEM;
}
if (fl->sctx && fl->sctx->sid)
buf->phys += ((u64)fl->sctx->sid << 32);