From: Chen Gang Date: Wed, 12 Jun 2013 21:04:40 +0000 (-0700) Subject: lib/mpi/mpicoder.c: looping issue, need stop when equal to zero, found by 'EXTRA_FLAG... X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=5402b8047b0d286b6501f9097891cbf1e06daa3a;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git lib/mpi/mpicoder.c: looping issue, need stop when equal to zero, found by 'EXTRA_FLAGS=-W'. For 'while' looping, need stop when 'nbytes == 0', or will cause issue. ('nbytes' is size_t which is always bigger or equal than zero). The related warning: (with EXTRA_CFLAGS=-W) lib/mpi/mpicoder.c:40:2: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits] Signed-off-by: Chen Gang Cc: Rusty Russell Cc: David Howells Cc: James Morris Cc: Andy Shevchenko Acked-by: David Howells Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/lib/mpi/mpicoder.c b/lib/mpi/mpicoder.c index 5f9c44cdf1f5..4cc6442733f4 100644 --- a/lib/mpi/mpicoder.c +++ b/lib/mpi/mpicoder.c @@ -37,7 +37,7 @@ MPI mpi_read_raw_data(const void *xbuffer, size_t nbytes) mpi_limb_t a; MPI val = NULL; - while (nbytes >= 0 && buffer[0] == 0) { + while (nbytes > 0 && buffer[0] == 0) { buffer++; nbytes--; }