Commit 0cfb8f0c authored by Committed by Linus TorvaldsBrowse files
memblock, memhotplug: fix wrong type in memblock_find_in_range_node().
In memblock_find_in_range_node(), we defined ret as int. But it should be phys_addr_t because it is used to store the return value from __memblock_find_range_bottom_up(). The bug has not been triggered because when allocating low memory near the kernel end, the "int ret" won't turn out to be negative. When we started to allocate memory on other nodes, and the "int ret" could be minus. Then the kernel will panic. A simple way to reproduce this: comment out the following code in numa_init(), memblock_set_bottom_up(false); and the kernel won't boot. Reported-by: Xishi Qiu <firstname.lastname@example.org> Signed-off-by: Tang Chen <email@example.com> Tested-by: Xishi Qiu <firstname.lastname@example.org> Cc: <email@example.com> [3.13+] Signed-off-by: Andrew Morton <firstname.lastname@example.org> Signed-off-by: Linus Torvalds <email@example.com>