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authorLinus Torvalds <torvalds@linux-foundation.org>2011-11-28 11:27:57 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2011-11-28 11:27:57 -0800
commitcb3599926e3e7b3678583195effa61a03026ab0e (patch)
tree775419d69e8732ba3f4933d3b7a07e98ae555458 /drivers/firmware
parent4244cb482e8eab18142162a27c8829a04585863a (diff)
parentf6f8285132907757ef84ef8dae0a1244b8cde6ac (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux: pstore: pass allocated memory region back to caller
Diffstat (limited to 'drivers/firmware')
-rw-r--r--drivers/firmware/efivars.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c
index 8370f72d87f..a54a6b972ce 100644
--- a/drivers/firmware/efivars.c
+++ b/drivers/firmware/efivars.c
@@ -457,7 +457,8 @@ static int efi_pstore_close(struct pstore_info *psi)
}
static ssize_t efi_pstore_read(u64 *id, enum pstore_type_id *type,
- struct timespec *timespec, struct pstore_info *psi)
+ struct timespec *timespec,
+ char **buf, struct pstore_info *psi)
{
efi_guid_t vendor = LINUX_EFI_CRASH_GUID;
struct efivars *efivars = psi->data;
@@ -478,7 +479,11 @@ static ssize_t efi_pstore_read(u64 *id, enum pstore_type_id *type,
timespec->tv_nsec = 0;
get_var_data_locked(efivars, &efivars->walk_entry->var);
size = efivars->walk_entry->var.DataSize;
- memcpy(psi->buf, efivars->walk_entry->var.Data, size);
+ *buf = kmalloc(size, GFP_KERNEL);
+ if (*buf == NULL)
+ return -ENOMEM;
+ memcpy(*buf, efivars->walk_entry->var.Data,
+ size);
efivars->walk_entry = list_entry(efivars->walk_entry->list.next,
struct efivar_entry, list);
return size;