diff options
| author | Akinobu Mita <akinobu.mita@gmail.com> | 2015-05-06 18:24:21 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-05-10 16:03:50 +0200 |
| commit | aa519be34f45954f33a6c20430deac8e544a180f (patch) | |
| tree | d23db758bb078c7c2aee9b8c7f74c965c5c07807 /drivers/usb/storage/jumpshot.c | |
| parent | 1cb39e256410830833aaae9c5cec8b10a43cf022 (diff) | |
| download | linux-aa519be34f45954f33a6c20430deac8e544a180f.tar.gz | |
usb: storage: fix module reference for scsi host
While accessing a unusual usb storage (ums-alauda, ums-cypress, ...),
the module reference count is not incremented. Because these drivers
allocate scsi hosts with usb_stor_host_template defined in usb-storage
module. So these drivers always can be unloaded.
This fixes it by preparing scsi host template which is initialized
at module_init() for each ums-* driver. In order to minimize the
difference in ums-* drivers, introduce module_usb_stor_driver() helper
macro which is same as module_usb_driver() except that it also
initializes scsi host template.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Vinayak Holikatti <vinholikatti@gmail.com>
Cc: Dolev Raviv <draviv@codeaurora.org>
Cc: Sujit Reddy Thumma <sthumma@codeaurora.org>
Cc: Subhash Jadavani <subhashj@codeaurora.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Cc: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Hannes Reinecke <hare@suse.de>
Cc: linux-usb@vger.kernel.org
Cc: usb-storage@lists.one-eyed-alien.net
Cc: linux-scsi@vger.kernel.org
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/storage/jumpshot.c')
| -rw-r--r-- | drivers/usb/storage/jumpshot.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/usb/storage/jumpshot.c b/drivers/usb/storage/jumpshot.c index 563078be654784..ee613e258db0e9 100644 --- a/drivers/usb/storage/jumpshot.c +++ b/drivers/usb/storage/jumpshot.c @@ -56,7 +56,9 @@ #include "transport.h" #include "protocol.h" #include "debug.h" +#include "scsiglue.h" +#define DRV_NAME "ums-jumpshot" MODULE_DESCRIPTION("Driver for Lexar \"Jumpshot\" Compact Flash reader"); MODULE_AUTHOR("Jimmie Mayfield <mayfield+usb@sackheads.org>"); @@ -647,6 +649,8 @@ static int jumpshot_transport(struct scsi_cmnd *srb, struct us_data *us) return USB_STOR_TRANSPORT_FAILED; } +static struct scsi_host_template jumpshot_host_template; + static int jumpshot_probe(struct usb_interface *intf, const struct usb_device_id *id) { @@ -654,7 +658,8 @@ static int jumpshot_probe(struct usb_interface *intf, int result; result = usb_stor_probe1(&us, intf, id, - (id - jumpshot_usb_ids) + jumpshot_unusual_dev_list); + (id - jumpshot_usb_ids) + jumpshot_unusual_dev_list, + &jumpshot_host_template); if (result) return result; @@ -668,7 +673,7 @@ static int jumpshot_probe(struct usb_interface *intf, } static struct usb_driver jumpshot_driver = { - .name = "ums-jumpshot", + .name = DRV_NAME, .probe = jumpshot_probe, .disconnect = usb_stor_disconnect, .suspend = usb_stor_suspend, @@ -681,4 +686,4 @@ static struct usb_driver jumpshot_driver = { .no_dynamic_id = 1, }; -module_usb_driver(jumpshot_driver); +module_usb_stor_driver(jumpshot_driver, jumpshot_host_template, DRV_NAME); |