]> git.baikalelectronics.ru Git - kernel.git/commit
projects / kernel.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 35f8842) | patch
scsi: sym53c8xx: Avoid undefined behaviour
authorHelge Deller <deller@gmx.de>
Thu, 10 Aug 2017 19:08:49 +0000 (21:08 +0200)
committerMartin K. Petersen <martin.petersen@oracle.com>
Fri, 25 Aug 2017 02:28:54 +0000 (22:28 -0400)
commited72cb444bc04587a1d5120cf71d555f1b89b801
tree6307e7ef8c5eaa37cc02af29215d14dd2b37f438tree | snapshot
parent35f884217d122610067faa3711491bfcab62bacdcommit | diff
scsi: sym53c8xx: Avoid undefined behaviour

On parisc I see this UBSAN warning with a sym53c896:

 UBSAN: Undefined behaviour in ./drivers/scsi/sym53c8xx_2/sym_hipd.c:762:24
 index -1903078336 is out of range for type 'u32 [7]'

Avoid this warning by switching to div64_ul().

[mkp: fix typo]

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
drivers/scsi/sym53c8xx_2/sym_hipd.c diff | blob | history
Linux Kernel Source Tree.