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authorLinus Torvalds <torvalds@linux-foundation.org>2012-06-20 15:15:03 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-06-20 15:15:03 -0700
commitbc259adc9b76f625fff0423df3ffb80a03802927 (patch)
tree68082b9f84a90eaaa8ed5b3ac3177eac32f9fe39 /fs/pstore/ram.c
parentfe80352460971de12519bf46ed5ec4235350bcd7 (diff)
parent3026b0e942c65c65c8fc80d391d004228b52b916 (diff)
Merge tag 'staging-3.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging tree fixes from Greg Kroah-Hartman: "Here are a number of small fixes for the drivers/staging tree, as well as iio and pstore drivers (which came from the staging tree in the 3.5-rc1 merge). All of these are tiny, but resolve issues that people have been reporting. There's also a documentation update to reflect what the iio drivers really are doing, which is good to get straightened out. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" * tag 'staging-3.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: r8712u: Add new USB IDs staging: gdm72xx: Release netlink socket properly iio: drop wrong reference from Kconfig pstore/inode: Make pstore_fill_super() static pstore/ram: Should zap persistent zone on unlink pstore/ram_core: Factor persistent_ram_zap() out of post_init() pstore/ram_core: Do not reset restored zone's position and size pstore/ram: Should update old dmesg buffer before reading staging:iio:ad7298: Fix linker error due to missing IIO kfifo buffer Revert "staging: usbip: bugfix for stack corruption on 64-bit architectures" staging: usbip: bugfix for stack corruption on 64-bit architectures staging/comedi: fix build for USB not enabled staging: omapdrm: fix crash when freeing bad fb staging:iio:ad7606: Re-add missing scale attribute iio: Fix potential use after free staging:iio: remove num_interrupt_lines from documentation iio: documentation: Add out_altvoltage and friends
Diffstat (limited to 'fs/pstore/ram.c')
-rw-r--r--fs/pstore/ram.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c
index 9123cce28c1..453030f9c5b 100644
--- a/fs/pstore/ram.c
+++ b/fs/pstore/ram.c
@@ -106,6 +106,8 @@ static ssize_t ramoops_pstore_read(u64 *id, enum pstore_type_id *type,
time->tv_sec = 0;
time->tv_nsec = 0;
+ /* Update old/shadowed buffer. */
+ persistent_ram_save_old(prz);
size = persistent_ram_old_size(prz);
*buf = kmalloc(size, GFP_KERNEL);
if (*buf == NULL)
@@ -184,6 +186,7 @@ static int ramoops_pstore_erase(enum pstore_type_id type, u64 id,
return -EINVAL;
persistent_ram_free_old(cxt->przs[id]);
+ persistent_ram_zap(cxt->przs[id]);
return 0;
}