Commit 74848398 authored Apr 02, 2008 by Maxim Shchetynin Committed by Paul Mackerras Apr 03, 2008

[POWERPC] Fix rtas_flash procfs interface



Handling of the proc_dir_entry->count was changed in 2.6.24-rc5.
After this change, the default value for pde->count is 1 and not 0 as
before.  Therefore, if we want to check whether our procfs file is
already opened (already in use), we have to check if pde->count is
greater than 2 rather than 1.

Signed-off-by: Maxim Shchetynin <maxim@de.ibm.com>
Signed-off-by: Jens Osterkamp <jens@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

parent b991f05f

arch/powerpc/kernel/rtas_flash.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -356,7 +356,7 @@ static int rtas_excl_open(struct inode inode, struct file file)

		/* Enforce exclusive open with use count of PDE */
		spin_lock(&flash_file_open_lock);
		if (atomic_read(&dp->count) > 1) {
		if (atomic_read(&dp->count) > 2) {
		spin_unlock(&flash_file_open_lock);
		return -EBUSY;
		}