Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
Merge tag 'dma-mapping-5.4-1' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping regression fix from Christoph Hellwig:
"Revert an incorret hunk from a patch that caused problems on various
arm boards (Andrey Smirnov)"
* tag 'dma-mapping-5.4-1' of git://git.infradead.org/users/hch/dma-mapping:
dma-mapping: fix false positive warnings in dma_common_free_remap()
+2
-2
+2
-2
kernel/dma/remap.c
+2
-2
kernel/dma/remap.c
···
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*/
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88
void dma_common_free_remap(void *cpu_addr, size_t size)
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{
90
-
struct page **pages = dma_common_find_pages(cpu_addr);
90
+
struct vm_struct *area = find_vm_area(cpu_addr);
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91
92
-
if (!pages) {
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+
if (!area || area->flags != VM_DMA_COHERENT) {
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WARN(1, "trying to free invalid coherent area: %p\n", cpu_addr);
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return;
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}