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Message-ID: <20060807150516.GA10416@skybase> Date: Mon, 7 Aug 2006 17:05:16 +0200 From: Martin Schwidefsky <schwidefsky@...ibm.com> To: linux-kernel@...r.kernel.org, heiko.carstens@...ibm.com Subject: [patch] s390: tape class return value handling. From: Heiko Carstens <heiko.carstens@...ibm.com> [S390] tape class return value handling. Without this patch register_tape_dev() will always fail, but might return a value that is not an error number. This will lead to accesses to already freed memory areas... Signed-off-by: Heiko Carstens <heiko.carstens@...ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@...ibm.com> --- drivers/s390/char/tape_class.c | 2 +- 1 files changed, 1 insertion(+), 1 deletion(-) diff -urpN linux-2.6/drivers/s390/char/tape_class.c linux-2.6-patched/drivers/s390/char/tape_class.c --- linux-2.6/drivers/s390/char/tape_class.c 2006-08-07 14:14:29.000000000 +0200 +++ linux-2.6-patched/drivers/s390/char/tape_class.c 2006-08-07 14:14:42.000000000 +0200 @@ -76,7 +76,7 @@ struct tape_class_device *register_tape_ device, "%s", tcd->device_name ); - rc = PTR_ERR(tcd->class_device); + rc = IS_ERR(tcd->class_device) ? PTR_ERR(tcd->class_device) : 0; if (rc) goto fail_with_cdev; rc = sysfs_create_link( - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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