diff options
author | Haavard Skinnemoen <hskinnemoen@atmel.com> | 2006-10-31 14:01:11 -0500 |
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committer | Haavard Skinnemoen <hskinnemoen@atmel.com> | 2006-11-06 04:43:24 -0500 |
commit | 168c8fa32ff40d6caf7226a5abf2a0096f3393bf (patch) | |
tree | b58f6a66a4325e83482cbc43d88fae7c9ee1054a /arch/avr32 | |
parent | e9a43850e6a99e335c8120579749389b376bc204 (diff) |
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>
Diffstat (limited to 'arch/avr32')
-rw-r--r-- | arch/avr32/lib/findbit.S | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/avr32/lib/findbit.S b/arch/avr32/lib/findbit.S index 2b4856f4bf7c..c6b91dee857c 100644 --- a/arch/avr32/lib/findbit.S +++ b/arch/avr32/lib/findbit.S | |||
@@ -136,6 +136,7 @@ ENTRY(generic_find_next_zero_le_bit) | |||
136 | /* offset is not word-aligned. Handle the first (32 - r10) bits */ | 136 | /* offset is not word-aligned. Handle the first (32 - r10) bits */ |
137 | ldswp.w r8, r12[0] | 137 | ldswp.w r8, r12[0] |
138 | sub r12, -4 | 138 | sub r12, -4 |
139 | com r8 | ||
139 | lsr r8, r8, r10 | 140 | lsr r8, r8, r10 |
140 | brne .L_found | 141 | brne .L_found |
141 | 142 | ||
@@ -146,7 +147,7 @@ ENTRY(generic_find_next_zero_le_bit) | |||
146 | 147 | ||
147 | /* Main loop. offset must be word-aligned */ | 148 | /* Main loop. offset must be word-aligned */ |
148 | 1: ldswp.w r8, r12[0] | 149 | 1: ldswp.w r8, r12[0] |
149 | cp.w r8, 0 | 150 | com r8 |
150 | brne .L_found | 151 | brne .L_found |
151 | sub r12, -4 | 152 | sub r12, -4 |
152 | sub r9, 32 | 153 | sub r9, 32 |