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[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>
hifive-unleashed-5.1
Maxim Shchetynin 2008-04-02 00:12:20 +11:00 committed by Paul Mackerras
parent b991f05f13
commit 7484839850
1 changed files with 1 additions and 1 deletions
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2
arch/powerpc/kernel/rtas_flash.c
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@ -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;
}