[PATCH] drivers/media/pci: use memmove for overlapping regions

Change several memcpy() to memmove() in cases when the regions are definitely overlapping; memcpy() of overlapping regions is undefined behavior in C and can produce different results depending on the compiler, the memcpy implementation, etc. Signed-off-by: Nickolai Zeldovich ---

[PATCH] drivers/media/pci: use memmove for overlapping regions

Change several memcpy() to memmove() in cases when the regions are definitely overlapping; memcpy() of overlapping regions is undefined behavior in C and can produce different results depending on the compiler, the memcpy implementation, etc. Signed-off-by: Nickolai Zeldovich