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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-01-27 09:02:09 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-01-27 09:02:09 -0800 |
| commit | 41592e2fb5ffb892d0b0befe8bf721839658c17a (patch) | |
| tree | a22f2d3a79b7fa17b79e2a0fe2cc8539b73b43bf /drivers | |
| parent | 4adca1cbc4cedb31aba03497b3de238ea13b566a (diff) | |
| parent | dc4515ea26d6c7fed3d978cd2bd36adc0d057bc5 (diff) | |
| download | linux-41592e2fb5ffb892d0b0befe8bf721839658c17a.tar.bz2 | |
Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
Pull one more module fix from Rusty Russell:
"SCSI was using module_refcount() to figure out when the module was
unloading: this broke with new atomic refcounting. The code is still
suspicious, but this solves the WARN_ON()"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
scsi: always increment reference count
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/scsi.c | 13 |
1 files changed, 3 insertions, 10 deletions
diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index e02885451425..9b3829931f40 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -986,9 +986,9 @@ int scsi_device_get(struct scsi_device *sdev) return -ENXIO; if (!get_device(&sdev->sdev_gendev)) return -ENXIO; - /* We can fail this if we're doing SCSI operations + /* We can fail try_module_get if we're doing SCSI operations * from module exit (like cache flush) */ - try_module_get(sdev->host->hostt->module); + __module_get(sdev->host->hostt->module); return 0; } @@ -1004,14 +1004,7 @@ EXPORT_SYMBOL(scsi_device_get); */ void scsi_device_put(struct scsi_device *sdev) { -#ifdef CONFIG_MODULE_UNLOAD - struct module *module = sdev->host->hostt->module; - - /* The module refcount will be zero if scsi_device_get() - * was called from a module removal routine */ - if (module && module_refcount(module) != 0) - module_put(module); -#endif + module_put(sdev->host->hostt->module); put_device(&sdev->sdev_gendev); } EXPORT_SYMBOL(scsi_device_put); |