[PATCH 2.6.20-rc2] [BUGFIX] drivers/atm/firestream.c: Fix infiniterecursion when alignment passed is 0.

[Amit Choudhary]

Description: Fix infinite recursion when alignment passed is 0 in function aligned_kmalloc(), in file drivers/atm/firestream.c. Also, a negative value for alignment does not make sense. Check for negative value too.
The function prototype is:
		static void __devinit *aligned_kmalloc (int size, gfp_t flags, int alignment).


Signed-off-by: Amit Choudhary <amit2030@xxxxxxxxx>

diff --git a/drivers/atm/firestream.c b/drivers/atm/firestream.c
index 9c67df5..2ba6b2e 100644
--- a/drivers/atm/firestream.c
+++ b/drivers/atm/firestream.c
@@ -1385,7 +1385,7 @@ static void __devinit *aligned_kmalloc (
 
 	if (alignment <= 0x10) {
 		t = kmalloc (size, flags);
-		if ((unsigned long)t & (alignment-1)) {
+		if ((unsigned long)t & ((alignment <= 0) ? 0 : (alignment-1))) {
 			printk ("Kmalloc doesn't align things correctly! %p\n", t);
 			kfree (t);
 			return aligned_kmalloc (size, flags, alignment * 4);
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/