[PATCH 0/2] tools/gpio: Add missing initialization of device_name

[PATCH 0/2] tools/gpio: Add missing initialization of device_name

[Geert Uytterhoeven]

	Hi Linus, Alex,

This small series enables compiler optimization for the GPIO tools, to
catch more bugs, and fix the bug found by it.

Geert Uytterhoeven (2):
  tools/gpio: Enable compiler optimization to catch more bugs
  tools/gpio: Add missing initialization of device_name

 tools/gpio/Makefile | 2 +-
 tools/gpio/lsgpio.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

-- 
1.9.1

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds

[PATCH 1/2] tools/gpio: Enable compiler optimization to catch more bugs

[Geert Uytterhoeven]

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 tools/gpio/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/gpio/Makefile b/tools/gpio/Makefile
index 4d198d5c42032661..c155d6bc47a7580c 100644
--- a/tools/gpio/Makefile
+++ b/tools/gpio/Makefile
@@ -1,5 +1,5 @@
 CC = $(CROSS_COMPILE)gcc
-CFLAGS += -Wall -g -D_GNU_SOURCE
+CFLAGS += -O2 -Wall -g -D_GNU_SOURCE
 
 all: lsgpio
 
-- 
1.9.1

[PATCH 2/2] tools/gpio: Add missing initialization of device_name

[Geert Uytterhoeven]

lsgpio.c: In function ‘main’:
lsgpio.c:166:7: warning: ‘device_name’ may be used uninitialized in this functio
n [-Wmaybe-uninitialized]
   ret = list_device(device_name);
       ^

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 tools/gpio/lsgpio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/gpio/lsgpio.c b/tools/gpio/lsgpio.c
index 1124da3759424fe6..eb3f56efd2158b4c 100644
--- a/tools/gpio/lsgpio.c
+++ b/tools/gpio/lsgpio.c
@@ -147,7 +147,7 @@ void print_usage(void)
 
 int main(int argc, char **argv)
 {
-	const char *device_name;
+	const char *device_name = NULL;
 	int ret;
 	int c;
 
-- 
1.9.1

Re: [PATCH 1/2] tools/gpio: Enable compiler optimization to catch more bugs

[Linus Walleij]

On Fri, Mar 25, 2016 at 1:36 PM, Geert Uytterhoeven
<geert+renesas@glider.be> wrote:

> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

OK patch applied.

Yours,
Linus Walleij

Re: [PATCH 2/2] tools/gpio: Add missing initialization of device_name

[Linus Walleij]

On Fri, Mar 25, 2016 at 1:36 PM, Geert Uytterhoeven
<geert+renesas@glider.be> wrote:

> lsgpio.c: In function ‘main’:
> lsgpio.c:166:7: warning: ‘device_name’ may be used uninitialized in this functio
> n [-Wmaybe-uninitialized]
>    ret = list_device(device_name);
>        ^
>
> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

Patch applied.

Yours,
Linus Walleij