evie/android_kernel_oneplus_msm8998
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mtip32xx: use formatting capability of kthread_create_on_node

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kthread_create_on_node takes format+args, so there's no need to do the
pretty-printing in advance. Moreover, "mtip_svc_thd_99" (including its
'\0') only just fits in 16 bytes, so if index could ever go above 99
we'd have a stack buffer overflow.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Rasmus Villemoes 2015-11-20 10:46:49 +01:00 • committed by Jens Axboe
parent 604e8c8da8
commit 8aeea03195
1 changed files with 2 additions and 4 deletions
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6
drivers/block/mtip32xx/mtip32xx.c
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@ -3810,7 +3810,6 @@ static int mtip_block_initialize(struct driver_data *dd)
sector_t capacity; sector_t capacity;
unsigned int index = 0; unsigned int index = 0;
struct kobject *kobj; struct kobject *kobj;
unsigned char thd_name[16];
if (dd->disk) if (dd->disk)
goto skip_create_disk; /* hw init done, before rebuild */ goto skip_create_disk; /* hw init done, before rebuild */
@ -3958,10 +3957,9 @@ skip_create_disk:
} }
start_service_thread: start_service_thread:
sprintf(thd_name, "mtip_svc_thd_%02d", index);
dd->mtip_svc_handler = kthread_create_on_node(mtip_service_thread, dd->mtip_svc_handler = kthread_create_on_node(mtip_service_thread,
dd, dd->numa_node, "%s", dd, dd->numa_node,
thd_name); "mtip_svc_thd_%02d", index);
if (IS_ERR(dd->mtip_svc_handler)) { if (IS_ERR(dd->mtip_svc_handler)) {
dev_err(&dd->pdev->dev, "service thread failed to start\n"); dev_err(&dd->pdev->dev, "service thread failed to start\n");