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pstore: make pstore write function return normal success/fail value

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Currently pstore write interface employs record id as return
value, but it is not enough because it can't tell caller if
the write operation is successful. Pass the record id back via
an argument pointer and return zero for success, non-zero for
failure.

Signed-off-by: Chen Gong <gong.chen@linux.intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Chen Gong
2011-10-12 09:17:24 -07:00
committed by Tony Luck
parent abd4d5587b
commit b238b8fa93
4 changed files with 23 additions and 19 deletions
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4
include/linux/pstore.h
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@ -39,8 +39,8 @@ struct pstore_info {
int (*close)(struct pstore_info *psi);
ssize_t (*read)(u64 *id, enum pstore_type_id *type,
struct timespec *time, struct pstore_info *psi);
u64 (*write)(enum pstore_type_id type, unsigned int part,
size_t size, struct pstore_info *psi);
int (*write)(enum pstore_type_id type, u64 *id,
unsigned int part, size_t size, struct pstore_info *psi);
int (*erase)(enum pstore_type_id type, u64 id,
struct pstore_info *psi);
void *data;