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| 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/ene_ub6250.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/ene_ub6250.c')
| -rw-r--r-- | drivers/usb/storage/ene_ub6250.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/usb/storage/ene_ub6250.c b/drivers/usb/storage/ene_ub6250.c index 56f782bef36b3d..f3cf4cecd2b7c8 100644 --- a/drivers/usb/storage/ene_ub6250.c +++ b/drivers/usb/storage/ene_ub6250.c @@ -28,6 +28,7 @@ #include "transport.h" #include "protocol.h" #include "debug.h" +#include "scsiglue.h" #define SD_INIT1_FIRMWARE "ene-ub6250/sd_init1.bin" #define SD_INIT2_FIRMWARE "ene-ub6250/sd_init2.bin" @@ -36,6 +37,8 @@ #define MSP_RW_FIRMWARE "ene-ub6250/msp_rdwr.bin" #define MS_RW_FIRMWARE "ene-ub6250/ms_rdwr.bin" +#define DRV_NAME "ums_eneub6250" + MODULE_DESCRIPTION("Driver for ENE UB6250 reader"); MODULE_LICENSE("GPL"); MODULE_FIRMWARE(SD_INIT1_FIRMWARE); @@ -2307,6 +2310,7 @@ static int ene_transport(struct scsi_cmnd *srb, struct us_data *us) return 0; } +static struct scsi_host_template ene_ub6250_host_template; static int ene_ub6250_probe(struct usb_interface *intf, const struct usb_device_id *id) @@ -2316,7 +2320,8 @@ static int ene_ub6250_probe(struct usb_interface *intf, struct us_data *us; result = usb_stor_probe1(&us, intf, id, - (id - ene_ub6250_usb_ids) + ene_ub6250_unusual_dev_list); + (id - ene_ub6250_usb_ids) + ene_ub6250_unusual_dev_list, + &ene_ub6250_host_template); if (result) return result; @@ -2404,7 +2409,7 @@ static int ene_ub6250_reset_resume(struct usb_interface *iface) #endif static struct usb_driver ene_ub6250_driver = { - .name = "ums_eneub6250", + .name = DRV_NAME, .probe = ene_ub6250_probe, .disconnect = usb_stor_disconnect, .suspend = usb_stor_suspend, @@ -2417,4 +2422,4 @@ static struct usb_driver ene_ub6250_driver = { .no_dynamic_id = 1, }; -module_usb_driver(ene_ub6250_driver); +module_usb_stor_driver(ene_ub6250_driver, ene_ub6250_host_template, DRV_NAME); |