AVR32: Fix thinko in generic_find_next_zero_le_bit()
The existing implementation of this function seems to be looking for
a one although it should be looking for a zero. This causes trouble
for the ext2 filesystem, which tends to report -ENOSPC without this
patch.
Fix this by complementing each word before scanning.
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
diff --git a/arch/avr32/lib/findbit.S b/arch/avr32/lib/findbit.S
index 2b4856f..c6b91de 100644
--- a/arch/avr32/lib/findbit.S
+++ b/arch/avr32/lib/findbit.S
@@ -136,6 +136,7 @@
/* offset is not word-aligned. Handle the first (32 - r10) bits */
ldswp.w r8, r12[0]
sub r12, -4
+ com r8
lsr r8, r8, r10
brne .L_found
@@ -146,7 +147,7 @@
/* Main loop. offset must be word-aligned */
1: ldswp.w r8, r12[0]
- cp.w r8, 0
+ com r8
brne .L_found
sub r12, -4
sub r9, 32