diff options
| author |   Shrikanth Hegde <sshegde@linux.ibm.com> | 2025-05-05 13:23:30 +0530 |
|---|---|---|
| committer |   Madhavan Srinivasan <maddy@linux.ibm.com> | 2025-06-23 09:57:10 +0530 |
| commit | 56534636c3c376a6868764eefd2a44b25f64fc0b (patch) | |
| tree | 4afc983a2a6a80f836a2ae306a5069e4b3834304 | |
| parent | powerpc: rtas: use lock guard for mutex (diff) | |
| download | wireguard-linux-56534636c3c376a6868764eefd2a44b25f64fc0b.tar.xz wireguard-linux-56534636c3c376a6868764eefd2a44b25f64fc0b.zip | |
powerpc: fadump: use lock guard for mutex
use scoped_guard for scope based resource management of mutex.
This would make the code simpler and easier to maintain.
More details on lock guards can be found at
https://lore.kernel.org/all/20230612093537.614161713@infradead.org/T/#u
Reviewed-by: Srikar Dronamraju <srikar@linux.ibm.com>
Signed-off-by: Shrikanth Hegde <sshegde@linux.ibm.com>
Tested-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com>
Reviewed-by: Sourabh Jain <sourabhjain@linux.ibm.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20250505075333.184463-4-sshegde@linux.ibm.com
| -rw-r--r-- | arch/powerpc/kernel/fadump.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c index 8ca49e40c473..8a050f30e6d9 100644 --- a/arch/powerpc/kernel/fadump.c +++ b/arch/powerpc/kernel/fadump.c @@ -1373,15 +1373,12 @@ static void fadump_free_elfcorehdr_buf(void) static void fadump_invalidate_release_mem(void) { - mutex_lock(&fadump_mutex); - if (!fw_dump.dump_active) { - mutex_unlock(&fadump_mutex); - return; + scoped_guard(mutex, &fadump_mutex) { + if (!fw_dump.dump_active) + return; + fadump_cleanup(); } - fadump_cleanup(); - mutex_unlock(&fadump_mutex); - fadump_free_elfcorehdr_buf(); fadump_release_memory(fw_dump.boot_mem_top, memblock_end_of_DRAM()); fadump_free_cpu_notes_buf(); |