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| author | Jan Beulich <JBeulich@novell.com> | 2005-06-23 00:09:59 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-23 09:45:28 -0700 |
| commit | c7ea4b31fd962b4baadb42c0b8d7c6851c584102 (patch) | |
| tree | be097db5341cd09a4cf640a2bc3c5a189e989f0c /drivers/ide/ide-floppy.c | |
| parent | ef3daeda7b58f046f94b26637d500354038d39f4 (diff) | |
| download | kernel-crypto-c7ea4b31fd962b4baadb42c0b8d7c6851c584102.tar.gz kernel-crypto-c7ea4b31fd962b4baadb42c0b8d7c6851c584102.tar.xz kernel-crypto-c7ea4b31fd962b4baadb42c0b8d7c6851c584102.zip | |
[PATCH] ide-floppy adjustments
Fix a build problem when IDEFLOPPY_DEBUG_BUGS is turned off, and eliminate an
access to memory that is no longer allocated (causing systems to fail booting
when CONFIG_DEBUG_PAGEALLOC is turned on).
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/ide/ide-floppy.c')
| -rw-r--r-- | drivers/ide/ide-floppy.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c index c949e98df4b..9eab6426148 100644 --- a/drivers/ide/ide-floppy.c +++ b/drivers/ide/ide-floppy.c @@ -661,10 +661,12 @@ static void idefloppy_output_buffers (ide_drive_t *drive, idefloppy_pc_t *pc, un idefloppy_do_end_request(drive, 1, done >> 9); +#if IDEFLOPPY_DEBUG_BUGS if (bcount) { printk(KERN_ERR "%s: leftover data in idefloppy_output_buffers, bcount == %d\n", drive->name, bcount); idefloppy_write_zeros(drive, bcount); } +#endif } static void idefloppy_update_buffers (ide_drive_t *drive, idefloppy_pc_t *pc) @@ -1048,6 +1050,9 @@ static ide_startstop_t idefloppy_issue_pc (ide_drive_t *drive, idefloppy_pc_t *p atapi_bcount_t bcount; ide_handler_t *pkt_xfer_routine; +#if 0 /* Accessing floppy->pc is not valid here, the previous pc may be gone + and have lived on another thread's stack; that stack may have become + unmapped meanwhile (CONFIG_DEBUG_PAGEALLOC). */ #if IDEFLOPPY_DEBUG_BUGS if (floppy->pc->c[0] == IDEFLOPPY_REQUEST_SENSE_CMD && pc->c[0] == IDEFLOPPY_REQUEST_SENSE_CMD) { @@ -1055,6 +1060,7 @@ static ide_startstop_t idefloppy_issue_pc (ide_drive_t *drive, idefloppy_pc_t *p "Two request sense in serial were issued\n"); } #endif /* IDEFLOPPY_DEBUG_BUGS */ +#endif if (floppy->failed_pc == NULL && pc->c[0] != IDEFLOPPY_REQUEST_SENSE_CMD) |