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* [PATCH] partitions/ibm: fix non-DASD devices
@ 2020-10-07 12:40 Christoph Hellwig
  2020-10-07 13:14 ` Stefan Haberland
  2020-10-07 13:53 ` Jens Axboe
  0 siblings, 2 replies; 8+ messages in thread
From: Christoph Hellwig @ 2020-10-07 12:40 UTC (permalink / raw)
  To: axboe; +Cc: linux-block, sth, linux-s390, Christian Borntraeger

Don't error out if the dasd_biodasdinfo symbol is not available.

Fixes: 26d7e28e3820 ("s390/dasd: remove ioctl_by_bdev calls")
Reported-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
---
 block/partitions/ibm.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/block/partitions/ibm.c b/block/partitions/ibm.c
index d6e18df9c53c6d..4b044e620d3534 100644
--- a/block/partitions/ibm.c
+++ b/block/partitions/ibm.c
@@ -305,8 +305,6 @@ int ibm_partition(struct parsed_partitions *state)
 	if (!disk->fops->getgeo)
 		goto out_exit;
 	fn = symbol_get(dasd_biodasdinfo);
-	if (!fn)
-		goto out_exit;
 	blocksize = bdev_logical_block_size(bdev);
 	if (blocksize <= 0)
 		goto out_symbol;
@@ -326,7 +324,7 @@ int ibm_partition(struct parsed_partitions *state)
 	geo->start = get_start_sect(bdev);
 	if (disk->fops->getgeo(bdev, geo))
 		goto out_freeall;
-	if (fn(disk, info)) {
+	if (!fn || fn(disk, info)) {
 		kfree(info);
 		info = NULL;
 	}
@@ -370,7 +368,8 @@ int ibm_partition(struct parsed_partitions *state)
 out_nogeo:
 	kfree(info);
 out_symbol:
-	symbol_put(dasd_biodasdinfo);
+	if (fn)
+		symbol_put(dasd_biodasdinfo);
 out_exit:
 	return res;
 }
-- 
2.28.0


^ permalink raw reply related	[flat|nested] 8+ messages in thread

end of thread, other threads:[~2020-10-07 14:03 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-10-07 12:40 [PATCH] partitions/ibm: fix non-DASD devices Christoph Hellwig
2020-10-07 13:14 ` Stefan Haberland
2020-10-07 13:53 ` Jens Axboe
2020-10-07 13:54   ` Christoph Hellwig
2020-10-07 13:54     ` Jens Axboe
2020-10-07 14:01       ` Christoph Hellwig
2020-10-07 14:02         ` Jens Axboe
2020-10-07 14:02         ` Christian Borntraeger

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