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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-11-28 20:27:57 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-11-28 20:27:57 +0100 |
| commit | cb3599926e3e7b3678583195effa61a03026ab0e (patch) | |
| tree | 775419d69e8732ba3f4933d3b7a07e98ae555458 /drivers/firmware | |
| parent | Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux (diff) | |
| parent | pstore: pass allocated memory region back to caller (diff) | |
| download | linux-cb3599926e3e7b3678583195effa61a03026ab0e.tar.xz linux-cb3599926e3e7b3678583195effa61a03026ab0e.zip | |
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.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c index 8370f72d87ff..a54a6b972ced 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; |