d/numam-spdk
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

nvme: Add assert for g_thread_mmio_ctrlr in sigbus error handler function.

Browse Source 
The g_thread_mmio_ctrlr should be not NULL pointer when it enter the
handler function.

Change-Id: I45dba601c672b16e2c6feafd9059bafde0d8f1b4
Signed-off-by: Cunyin Chang <cunyin.chang@intel.com>
This commit is contained in:
Cunyin Chang 2017-01-23 12:35:02 +08:00 committed by Jim Harris
parent 4a5a24d537
commit 2d5087b305
1 changed files with 13 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
lib/nvme/nvme_pcie.c
View File

@ -204,20 +204,20 @@ nvme_sigbus_fault_sighandler(int signum, siginfo_t *info, void *ctx)
return;
}
if (g_thread_mmio_ctrlr) {
if (!g_thread_mmio_ctrlr->is_remapped) {
map_address = mmap((void *)g_thread_mmio_ctrlr->regs, g_thread_mmio_ctrlr->regs_size,
PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED, -1, 0);
if (map_address == MAP_FAILED) {
SPDK_ERRLOG("mmap failed\n");
g_signal_lock = 0;
return;
}
memset(map_address, 0xFF, sizeof(struct spdk_nvme_registers));
g_thread_mmio_ctrlr->regs = (volatile struct spdk_nvme_registers *)map_address;
g_thread_mmio_ctrlr->is_remapped = true;
assert(g_thread_mmio_ctrlr != NULL);
if (!g_thread_mmio_ctrlr->is_remapped) {
map_address = mmap((void *)g_thread_mmio_ctrlr->regs, g_thread_mmio_ctrlr->regs_size,
PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED, -1, 0);
if (map_address == MAP_FAILED) {
SPDK_ERRLOG("mmap failed\n");
g_signal_lock = 0;
return;
}
memset(map_address, 0xFF, sizeof(struct spdk_nvme_registers));
g_thread_mmio_ctrlr->regs = (volatile struct spdk_nvme_registers *)map_address;
g_thread_mmio_ctrlr->is_remapped = true;
}
g_signal_lock = 0;
return;