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authorAxel Lin <axel.lin@gmail.com>2011-03-07 13:56:11 +0800
committerEric Miao <eric.y.miao@gmail.com>2011-03-17 23:06:29 +0800
commit5898eb79fb45d4fd4ce22139c168de937bfaab38 (patch)
tree2ee16f59af3868349c3e35a47f7035ef481c6a8c /arch/arm/mach-pxa/am300epd.c
parent8aad172e6c54c74b1effe88ded2f308db3e1b658 (diff)
ARM: pxa/am300epd: fix leak in am300_init_gpio_regs error path
If gpio_request fails when i > 0, gpios[0] is not freed in current implementation. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
Diffstat (limited to 'arch/arm/mach-pxa/am300epd.c')
-rw-r--r--arch/arm/mach-pxa/am300epd.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/arch/arm/mach-pxa/am300epd.c b/arch/arm/mach-pxa/am300epd.c
index 993d75e6639..fa8bad235d9 100644
--- a/arch/arm/mach-pxa/am300epd.c
+++ b/arch/arm/mach-pxa/am300epd.c
@@ -125,10 +125,7 @@ static int am300_init_gpio_regs(struct broadsheetfb_par *par)
if (err) {
dev_err(&am300_device->dev, "failed requesting "
"gpio %d, err=%d\n", i, err);
- while (i >= DB0_GPIO_PIN)
- gpio_free(i--);
- i = ARRAY_SIZE(gpios) - 1;
- goto err_req_gpio;
+ goto err_req_gpio2;
}
}
@@ -159,9 +156,13 @@ static int am300_init_gpio_regs(struct broadsheetfb_par *par)
return 0;
+err_req_gpio2:
+ while (--i >= DB0_GPIO_PIN)
+ gpio_free(i);
+ i = ARRAY_SIZE(gpios);
err_req_gpio:
- while (i > 0)
- gpio_free(gpios[i--]);
+ while (--i >= 0)
+ gpio_free(gpios[i]);
return err;
}