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AVR32: Fix thinko in generic_find_next_zero_le_bit()

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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>
This commit is contained in:
Haavard Skinnemoen 2006-10-31 20:01:11 +01:00
parent e9a43850e6
commit 168c8fa32f
1 changed files with 2 additions and 1 deletions
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3
arch/avr32/lib/findbit.S
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@ -136,6 +136,7 @@ ENTRY(generic_find_next_zero_le_bit)
/* 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 @@ ENTRY(generic_find_next_zero_le_bit)
/* 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