arm: early_printk: do bound check independent of @n

PATCH New Arjun Sreedharan 1 participant 1 message Nov 21, 2014 Arm (32-bit)

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Arjun Sreedharan

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2014-11-21 19:28 UTC #0 lore raw

PATCH 1/1 arm: early_printk: do bound check independent of @n

Signed-off-by Arjun Sreedharan <[email protected]>

---
 arch/arm/kernel/early_printk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

arch/arm/kernel/early_printk.c +1 -1

index 4307653..9e05f8a 100644
@@ -16,7 +16,7 @@ extern void printch(int);
 
 static void early_write(const char *s, unsigned n)
 {
-	while (n-- > 0) {
+	while (*s && n-- > 0) {
 		if (*s == '\n')
 			printch('\r');
 		printch(*s);

Signature · 1 line

1.7.11.7