| Message ID | 1496201199-3661-1-git-send-email-baijiaju1990@163.com (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
diff --git a/drivers/target/iscsi/iscsi_target_parameters.c b/drivers/target/iscsi/iscsi_target_parameters.c index fce6276..8768916 100644 --- a/drivers/target/iscsi/iscsi_target_parameters.c +++ b/drivers/target/iscsi/iscsi_target_parameters.c @@ -702,7 +702,7 @@ int iscsi_update_param_value(struct iscsi_param *param, char *value) { kfree(param->value); - param->value = kstrdup(value, GFP_KERNEL); + param->value = kstrdup(value, GFP_ATOMIC); if (!param->value) { pr_err("Unable to allocate memory for value.\n"); return -ENOMEM;
The driver may sleep under a spin lock, and the function call path is: iscsit_tpg_enable_portal_group (acquire the lock by spin_lock) iscsi_update_param_value kstrdup(GFP_KERNEL) --> may sleep To fix it, the "GFP_KERNEL" is replaced with "GFP_ATOMIC". Signed-off-by: Jia-Ju Bai <baijiaju1990@163.com> --- drivers/target/iscsi/iscsi_target_parameters.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)