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Merge "msm: ADSPRPC: Size check before allocating memory from DMA"

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qctecmdr
2020-07-28 09:43:10 -07:00
committed by Gerrit - the friendly Code Review server
parent 9783f5fa21 4e8ef6147e
commit 95565ecfa2
1 changed files with 8 additions and 0 deletions
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8
drivers/char/adsprpc.c
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@@ -648,12 +648,20 @@ static int fastrpc_mmap_find(struct fastrpc_file *fl, int fd,
static int dma_alloc_memory(dma_addr_t *region_phys, void **vaddr, size_t size,
unsigned long dma_attr)
{
int err = 0;
struct fastrpc_apps *me = &gfa;
if (me->dev == NULL) {
pr_err("device adsprpc-mem is not initialized\n");
return -ENODEV;
}
VERIFY(err, size > 0 && size < MAX_SIZE_LIMIT);
if (err) {
err = -EFAULT;
pr_err("adsprpc: %s: invalid allocation size 0x%zx\n",
__func__, size);
return err;
}
*vaddr = dma_alloc_attrs(me->dev, size, region_phys,
GFP_KERNEL, dma_attr);
if (IS_ERR_OR_NULL(*vaddr)) {