4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Kim Phillips kim.phillips@arm.com
[ Upstream commit f6432b9f65001651412dbc3589d251534822d4ab ]
Like system(), popen() calls /bin/sh, which may/may not be bash.
Script when run on dash and encounters the line, yields:
exit: Illegal number: -1
checkbashisms report on script content:
possible bashism (exit|return with negative status code): exit -1
Remove the bashism and use the more portable non-zero failure status code 1.
Signed-off-by: Kim Phillips kim.phillips@arm.com Cc: Alexander Shishkin alexander.shishkin@linux.intel.com Cc: Hendrik Brueckner brueckner@linux.vnet.ibm.com Cc: Jiri Olsa jolsa@redhat.com Cc: Michael Petlan mpetlan@redhat.com Cc: Namhyung Kim namhyung@kernel.org Cc: Peter Zijlstra peterz@infradead.org Cc: Sandipan Das sandipan@linux.vnet.ibm.com Cc: Thomas Richter tmricht@linux.vnet.ibm.com Link: http://lkml.kernel.org/r/20180629124652.8d0af7e2281fd3fd8262cacc@arm.com Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- tools/perf/util/llvm-utils.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
--- a/tools/perf/util/llvm-utils.c +++ b/tools/perf/util/llvm-utils.c @@ -260,16 +260,16 @@ static const char *kinc_fetch_script = "#!/usr/bin/env sh\n" "if ! test -d "$KBUILD_DIR"\n" "then\n" -" exit -1\n" +" exit 1\n" "fi\n" "if ! test -f "$KBUILD_DIR/include/generated/autoconf.h"\n" "then\n" -" exit -1\n" +" exit 1\n" "fi\n" "TMPDIR=`mktemp -d`\n" "if test -z "$TMPDIR"\n" "then\n" -" exit -1\n" +" exit 1\n" "fi\n" "cat << EOF > $TMPDIR/Makefile\n" "obj-y := dummy.o\n"