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commit e00f85aeb0db134f9d444522800cf83b3e158af0
parent f6b1522b348c9df8dd6f0d177466de1936bbce77
Author: Don Allen <donaldcallen@gmail.com>
Date:   Sun,  1 Jan 2012 08:21:37 -0500

Fix seg-fault in getbattery. The code failed to check for co == NULL after the first call to readline.
If NULL, a seg-fault would occur on the reference to co[0]. This change fixes that.
Diffstat:
M
dwm.suckless.org/dwmstatus/new-acpi-battery.c
 | 
4
++--

1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/dwm.suckless.org/dwmstatus/new-acpi-battery.c b/dwm.suckless.org/dwmstatus/new-acpi-battery.c
@@ -33,8 +33,8 @@ getbattery(char *base)
 	remcap = -1;
 
 	co = readfile(base, "present");
-	if (co[0] != '1') {
-		free(co);
+	if (co == NULL || co[0] != '1') {
+		if (co != NULL) free(co);
 		return smprintf("not present");
 	}
 	free(co);