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| author | Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de> | 2015-10-23 13:30:20 +0200 |
|---|---|---|
| committer | Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de> | 2015-10-23 13:30:20 +0200 |
| commit | e7549b926dd3ceec048f5689df90d4ec970c9419 (patch) | |
| tree | c8645e0b4343c309aac1a3838a17cfcf0893d7b5 /drivers/usb/mon/mon_text.c | |
| parent | 499ba610c2829adafbf393c2f3773d73ae4445f3 (diff) | |
| download | kernel_samsung_smdk4412-e7549b926dd3ceec048f5689df90d4ec970c9419.zip kernel_samsung_smdk4412-e7549b926dd3ceec048f5689df90d4ec970c9419.tar.gz kernel_samsung_smdk4412-e7549b926dd3ceec048f5689df90d4ec970c9419.tar.bz2 | |
more driver stuff from 3.2.72
Diffstat (limited to 'drivers/usb/mon/mon_text.c')
| -rw-r--r-- | drivers/usb/mon/mon_text.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/usb/mon/mon_text.c b/drivers/usb/mon/mon_text.c index c302e19..ad40825 100644 --- a/drivers/usb/mon/mon_text.c +++ b/drivers/usb/mon/mon_text.c @@ -9,6 +9,7 @@ #include <linux/usb.h> #include <linux/slab.h> #include <linux/time.h> +#include <linux/export.h> #include <linux/mutex.h> #include <linux/debugfs.h> #include <linux/scatterlist.h> @@ -670,6 +671,9 @@ int mon_text_add(struct mon_bus *mbus, const struct usb_bus *ubus) int busnum = ubus? ubus->busnum: 0; int rc; + if (mon_dir == NULL) + return 0; + if (ubus != NULL) { rc = snprintf(name, NAMESZ, "%dt", busnum); if (rc <= 0 || rc >= NAMESZ) @@ -740,12 +744,12 @@ int __init mon_text_init(void) mondir = debugfs_create_dir("usbmon", usb_debug_root); if (IS_ERR(mondir)) { - printk(KERN_NOTICE TAG ": debugfs is not available\n"); - return -ENODEV; + /* debugfs not available, but we can use usbmon without it */ + return 0; } if (mondir == NULL) { printk(KERN_NOTICE TAG ": unable to create usbmon directory\n"); - return -ENODEV; + return -ENOMEM; } mon_dir = mondir; return 0; |