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path: root/drivers/usb/gadget/file_storage.c
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Diffstat (limited to 'drivers/usb/gadget/file_storage.c')
-rw-r--r--drivers/usb/gadget/file_storage.c20
1 files changed, 11 insertions, 9 deletions
diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c
index 88e5ad2bc710..a857b7ac238c 100644
--- a/drivers/usb/gadget/file_storage.c
+++ b/drivers/usb/gadget/file_storage.c
@@ -321,7 +321,7 @@ static struct {
unsigned short vendor;
unsigned short product;
unsigned short release;
- char *serial_parm;
+ char *serial;
unsigned int buflen;
int transport_type;
@@ -365,6 +365,8 @@ MODULE_PARM_DESC(stall, "false to prevent bulk stalls");
module_param_named(cdrom, mod_data.cdrom, bool, S_IRUGO);
MODULE_PARM_DESC(cdrom, "true to emulate cdrom instead of disk");
+module_param_named(serial, mod_data.serial, charp, S_IRUGO);
+MODULE_PARM_DESC(serial, "USB serial number");
/* In the non-TEST version, only the module parameters listed above
* are available. */
@@ -386,9 +388,6 @@ MODULE_PARM_DESC(product, "USB Product ID");
module_param_named(release, mod_data.release, ushort, S_IRUGO);
MODULE_PARM_DESC(release, "USB release number");
-module_param_named(serial, mod_data.serial_parm, charp, S_IRUGO);
-MODULE_PARM_DESC(serial, "USB serial number");
-
module_param_named(buflen, mod_data.buflen, uint, S_IRUGO);
MODULE_PARM_DESC(buflen, "I/O buffer size");
@@ -3291,10 +3290,12 @@ static int __init check_parameters(struct fsg_dev *fsg)
return -ETOOSMALL;
}
+#endif /* CONFIG_USB_FILE_STORAGE_TEST */
+
/* Serial string handling.
* On a real device, the serial string would be loaded
* from permanent storage. */
- if (mod_data.serial_parm) {
+ if (mod_data.serial) {
const char *ch;
unsigned len = 0;
@@ -3303,7 +3304,7 @@ static int __init check_parameters(struct fsg_dev *fsg)
* 12 uppercase hexadecimal characters.
* BBB need at least 12 uppercase hexadecimal characters,
* with a maximum of 126. */
- for (ch = mod_data.serial_parm; *ch; ++ch) {
+ for (ch = mod_data.serial; *ch; ++ch) {
++len;
if ((*ch < '0' || *ch > '9') &&
(*ch < 'A' || *ch > 'F')) { /* not uppercase hex */
@@ -3322,8 +3323,11 @@ static int __init check_parameters(struct fsg_dev *fsg)
"Failing back to default\n");
goto fill_serial;
}
- fsg_strings[FSG_STRING_SERIAL - 1].s = mod_data.serial_parm;
+ fsg_strings[FSG_STRING_SERIAL - 1].s = mod_data.serial;
} else {
+ WARNING(fsg,
+ "Userspace failed to provide serial number; "
+ "Failing back to default\n");
fill_serial:
/* Serial number not specified or invalid, make our own.
* We just encode it from the driver version string,
@@ -3339,8 +3343,6 @@ fill_serial:
}
}
-#endif /* CONFIG_USB_FILE_STORAGE_TEST */
-
return 0;
}
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