[SCSI] sym53c8xx: fixes two bugs related to chip reset

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This patch fixes two bugs pointed by James Bottomley:

 1. the if (!sym_data->io_reset).  That variable is only ever filled
    by a stack based completion.  If we find it non empty it means
    this code has been entered twice and we have a severe problem,
    so that should just become a BUG_ON(sym_data->io_reset).
 2. sym_data->io_reset should be set to NULL before the routine is
    exited otherwise the PCI recovery code could end up completing
    what will be a bogus pointer into the stack.

Big thanks to James Bottomley for help with the patch.

Signed-off-by: Krzysztof Helt <krzysztof.h1@w.pl>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

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Krzysztof Helt 2008-01-11 21:50:46 +01:00 • committed by James Bottomley

parent 3a0086a80a

commit d9aa3af09c

1 changed files with 7 additions and 6 deletions

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drivers/scsi/sym53c8xx_2/sym_glue.c

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