From 2edbf8537edc62c9b0ef75e7025d01e8b6a48707 Mon Sep 17 00:00:00 2001 From: Jonathan Corbet Date: Thu, 15 May 2008 10:37:16 -0600 Subject: Input: cdev lock_kernel() pushdown Signed-off-by: Jonathan Corbet --- drivers/input/input.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/input.c b/drivers/input/input.c index 27006fc18305..408df0bd6be5 100644 --- a/drivers/input/input.c +++ b/drivers/input/input.c @@ -21,6 +21,7 @@ #include #include #include +#include MODULE_AUTHOR("Vojtech Pavlik "); MODULE_DESCRIPTION("Input core"); @@ -1588,13 +1589,17 @@ EXPORT_SYMBOL(input_unregister_handle); static int input_open_file(struct inode *inode, struct file *file) { - struct input_handler *handler = input_table[iminor(inode) >> 5]; + struct input_handler *handler; const struct file_operations *old_fops, *new_fops = NULL; int err; + lock_kernel(); /* No load-on-demand here? */ - if (!handler || !(new_fops = fops_get(handler->fops))) - return -ENODEV; + handler = input_table[iminor(inode) >> 5]; + if (!handler || !(new_fops = fops_get(handler->fops))) { + err = -ENODEV; + goto out; + } /* * That's _really_ odd. Usually NULL ->open means "nothing special", @@ -1602,7 +1607,8 @@ static int input_open_file(struct inode *inode, struct file *file) */ if (!new_fops->open) { fops_put(new_fops); - return -ENODEV; + err = -ENODEV; + goto out; } old_fops = file->f_op; file->f_op = new_fops; @@ -1614,6 +1620,8 @@ static int input_open_file(struct inode *inode, struct file *file) file->f_op = fops_get(old_fops); } fops_put(old_fops); +out: + unlock_kernel(); return err; } -- cgit v1.2.2 From 986f8b8ccf4806c1e95528a6f157998113fb4f41 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Tue, 20 May 2008 19:15:58 +0200 Subject: hp_sdc_rtc: BKL pushdown Signed-off-by: Arnd Bergmann --- drivers/input/misc/hp_sdc_rtc.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/input') diff --git a/drivers/input/misc/hp_sdc_rtc.c b/drivers/input/misc/hp_sdc_rtc.c index 45e5d05b01de..49d8abfe38fe 100644 --- a/drivers/input/misc/hp_sdc_rtc.c +++ b/drivers/input/misc/hp_sdc_rtc.c @@ -35,6 +35,7 @@ #include #include +#include #include #include #include @@ -408,6 +409,7 @@ static unsigned int hp_sdc_rtc_poll(struct file *file, poll_table *wait) static int hp_sdc_rtc_open(struct inode *inode, struct file *file) { + cycle_kernel_lock(); return 0; } -- cgit v1.2.2 From f9c8154f367d471f1af56742fe8534f8458adb98 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Tue, 20 May 2008 19:16:20 +0200 Subject: mousedev: BKL pushdown Signed-off-by: Arnd Bergmann --- drivers/input/mousedev.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c index b989748598ae..8137e50ded87 100644 --- a/drivers/input/mousedev.c +++ b/drivers/input/mousedev.c @@ -14,6 +14,7 @@ #define MOUSEDEV_MIX 31 #include +#include #include #include #include @@ -545,16 +546,21 @@ static int mousedev_open(struct inode *inode, struct file *file) if (i >= MOUSEDEV_MINORS) return -ENODEV; + lock_kernel(); error = mutex_lock_interruptible(&mousedev_table_mutex); - if (error) + if (error) { + unlock_kernel(); return error; + } mousedev = mousedev_table[i]; if (mousedev) get_device(&mousedev->dev); mutex_unlock(&mousedev_table_mutex); - if (!mousedev) + if (!mousedev) { + unlock_kernel(); return -ENODEV; + } client = kzalloc(sizeof(struct mousedev_client), GFP_KERNEL); if (!client) { @@ -573,6 +579,7 @@ static int mousedev_open(struct inode *inode, struct file *file) goto err_free_client; file->private_data = client; + unlock_kernel(); return 0; err_free_client: @@ -580,6 +587,7 @@ static int mousedev_open(struct inode *inode, struct file *file) kfree(client); err_put_mousedev: put_device(&mousedev->dev); + unlock_kernel(); return error; } -- cgit v1.2.2 From 9edca64b724db74373f0c9ef7cb044a5f221a4a3 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Tue, 20 May 2008 19:16:43 +0200 Subject: serio: BKL pushdown Signed-off-by: Arnd Bergmann --- drivers/input/serio/serio_raw.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'drivers/input') diff --git a/drivers/input/serio/serio_raw.c b/drivers/input/serio/serio_raw.c index 0403622ae267..c9397c8ee97e 100644 --- a/drivers/input/serio/serio_raw.c +++ b/drivers/input/serio/serio_raw.c @@ -10,6 +10,7 @@ */ #include +#include #include #include #include @@ -81,9 +82,10 @@ static int serio_raw_open(struct inode *inode, struct file *file) struct serio_raw_list *list; int retval = 0; + lock_kernel(); retval = mutex_lock_interruptible(&serio_raw_mutex); if (retval) - return retval; + goto out_bkl; if (!(serio_raw = serio_raw_locate(iminor(inode)))) { retval = -ENODEV; @@ -108,6 +110,8 @@ static int serio_raw_open(struct inode *inode, struct file *file) out: mutex_unlock(&serio_raw_mutex); +out_bkl: + unlock_kernel(); return retval; } -- cgit v1.2.2 From 8702965848ed4bee27486a3e3d2ae34ebba6dd83 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Tue, 20 May 2008 19:16:53 +0200 Subject: uinput: BKL pushdown Signed-off-by: Arnd Bergmann --- drivers/input/misc/uinput.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/input') diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c index a56ad4ba8fe2..2bcfa0b35061 100644 --- a/drivers/input/misc/uinput.c +++ b/drivers/input/misc/uinput.c @@ -37,6 +37,7 @@ #include #include #include +#include static int uinput_dev_event(struct input_dev *dev, unsigned int type, unsigned int code, int value) { @@ -222,6 +223,7 @@ static int uinput_open(struct inode *inode, struct file *file) if (!newdev) return -ENOMEM; + lock_kernel(); mutex_init(&newdev->mutex); spin_lock_init(&newdev->requests_lock); init_waitqueue_head(&newdev->requests_waitq); @@ -229,6 +231,7 @@ static int uinput_open(struct inode *inode, struct file *file) newdev->state = UIST_NEW_DEVICE; file->private_data = newdev; + unlock_kernel(); return 0; } -- cgit v1.2.2