Commit 168c8fa3 authored Oct 31, 2006 by Haavard Skinnemoen

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>

parent e9a43850

arch/avr32/lib/findbit.S

+2 −1

Original line number	Diff line number	Diff line
		@@ -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