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authorRandy Dunlap <rdunlap@infradead.org>2022-03-16 22:20:07 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-03-18 14:53:18 +0300
commit6653b827613aa301de691842c38f01e874604f88 (patch)
treec9e5cc95219072e895301f34b0cd69d44a4c7cb0 /drivers/usb
parent393dcd1f2b75e50783c805814a96bf6c8e11fe03 (diff)
downloadlinux-6653b827613aa301de691842c38f01e874604f88.tar.xz
usb: gadget: eliminate anonymous module_init & module_exit
Eliminate anonymous module_init() and module_exit(), which can lead to confusion or ambiguity when reading System.map, crashes/oops/bugs, or an initcall_debug log. Give each of these init and exit functions unique driver-specific names to eliminate the anonymous names. Example 1: (System.map) ffffffff832fc78c t init ffffffff832fc79e t init ffffffff832fc8f8 t init Example 2: (initcall_debug log) calling init+0x0/0x12 @ 1 initcall init+0x0/0x12 returned 0 after 15 usecs calling init+0x0/0x60 @ 1 initcall init+0x0/0x60 returned 0 after 2 usecs calling init+0x0/0x9a @ 1 initcall init+0x0/0x9a returned 0 after 74 usecs Fixes: bd25a14edb75 ("usb: gadget: legacy/serial: allow dynamic removal") Fixes: 7bb5ea54be47 ("usb gadget serial: use composite gadget framework") Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Cc: Felipe Balbi <felipe.balbi@linux.intel.com> Cc: Michał Mirosław <mirq-linux@rere.qmqm.pl> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: linux-usb@vger.kernel.org Link: https://lore.kernel.org/r/20220316192010.19001-7-rdunlap@infradead.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/gadget/legacy/inode.c8
-rw-r--r--drivers/usb/gadget/legacy/serial.c10
-rw-r--r--drivers/usb/gadget/udc/dummy_hcd.c8
3 files changed, 13 insertions, 13 deletions
diff --git a/drivers/usb/gadget/legacy/inode.c b/drivers/usb/gadget/legacy/inode.c
index 51f9d96827b1..0c01e749f9ea 100644
--- a/drivers/usb/gadget/legacy/inode.c
+++ b/drivers/usb/gadget/legacy/inode.c
@@ -2101,7 +2101,7 @@ MODULE_ALIAS_FS("gadgetfs");
/*----------------------------------------------------------------------*/
-static int __init init (void)
+static int __init gadgetfs_init (void)
{
int status;
@@ -2111,12 +2111,12 @@ static int __init init (void)
shortname, driver_desc);
return status;
}
-module_init (init);
+module_init (gadgetfs_init);
-static void __exit cleanup (void)
+static void __exit gadgetfs_cleanup (void)
{
pr_debug ("unregister %s\n", shortname);
unregister_filesystem (&gadgetfs_type);
}
-module_exit (cleanup);
+module_exit (gadgetfs_cleanup);
diff --git a/drivers/usb/gadget/legacy/serial.c b/drivers/usb/gadget/legacy/serial.c
index da44f89f5e73..dcd3a6603d90 100644
--- a/drivers/usb/gadget/legacy/serial.c
+++ b/drivers/usb/gadget/legacy/serial.c
@@ -273,7 +273,7 @@ static struct usb_composite_driver gserial_driver = {
static int switch_gserial_enable(bool do_enable)
{
if (!serial_config_driver.label)
- /* init() was not called, yet */
+ /* gserial_init() was not called, yet */
return 0;
if (do_enable)
@@ -283,7 +283,7 @@ static int switch_gserial_enable(bool do_enable)
return 0;
}
-static int __init init(void)
+static int __init gserial_init(void)
{
/* We *could* export two configs; that'd be much cleaner...
* but neither of these product IDs was defined that way.
@@ -314,11 +314,11 @@ static int __init init(void)
return usb_composite_probe(&gserial_driver);
}
-module_init(init);
+module_init(gserial_init);
-static void __exit cleanup(void)
+static void __exit gserial_cleanup(void)
{
if (enable)
usb_composite_unregister(&gserial_driver);
}
-module_exit(cleanup);
+module_exit(gserial_cleanup);
diff --git a/drivers/usb/gadget/udc/dummy_hcd.c b/drivers/usb/gadget/udc/dummy_hcd.c
index 35aec8e7fc73..899ac9f9c279 100644
--- a/drivers/usb/gadget/udc/dummy_hcd.c
+++ b/drivers/usb/gadget/udc/dummy_hcd.c
@@ -2766,7 +2766,7 @@ static struct platform_driver dummy_hcd_driver = {
static struct platform_device *the_udc_pdev[MAX_NUM_UDC];
static struct platform_device *the_hcd_pdev[MAX_NUM_UDC];
-static int __init init(void)
+static int __init dummy_hcd_init(void)
{
int retval = -ENOMEM;
int i;
@@ -2888,9 +2888,9 @@ err_alloc_udc:
platform_device_put(the_hcd_pdev[i]);
return retval;
}
-module_init(init);
+module_init(dummy_hcd_init);
-static void __exit cleanup(void)
+static void __exit dummy_hcd_cleanup(void)
{
int i;
@@ -2906,4 +2906,4 @@ static void __exit cleanup(void)
platform_driver_unregister(&dummy_udc_driver);
platform_driver_unregister(&dummy_hcd_driver);
}
-module_exit(cleanup);
+module_exit(dummy_hcd_cleanup);