On Mon, Jan 31, 2022 at 03:22:42PM -0300, Maíra Canal wrote: > Implement conditional logic in order to replace NULL pointer arithmetic. > > The use of NULL pointer arithmetic was pointed out by clang with the > following warning: > > fs/kernfs/file.c:128:15: warning: performing pointer arithmetic on a > null pointer has undefined behavior [-Wnull-pointer-arithmetic] > return NULL + !*ppos; > ~~~~ ^ > fs/seq_file.c:559:14: warning: performing pointer arithmetic on a > null pointer has undefined behavior [-Wnull-pointer-arithmetic] > return NULL + (*pos == 0); > > Signed-off-by: Maíra Canal <maira.canal@xxxxxx> Reviewed-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>