| Message ID | 20230330023834.97455-1-jiapeng.chong@linux.alibaba.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | scsi: target: return -ENOMEM when kzalloc failed | expand |
On 3/29/23 19:38, Jiapeng Chong wrote: > The driver is using -1 instead of the -ENOMEM defined macro to specify > that a buffer allocation failed. > > drivers/target/iscsi/iscsi_target.c:691 iscsi_target_init_module() warn: returning -1 instead of -ENOMEM is sloppy. > > Reported-by: Abaci Robot <abaci@linux.alibaba.com> > Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=4644 > Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> > --- > drivers/target/iscsi/iscsi_target.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c > index 834cce50f9b0..d3a40c3caaf5 100644 > --- a/drivers/target/iscsi/iscsi_target.c > +++ b/drivers/target/iscsi/iscsi_target.c > @@ -688,7 +688,7 @@ static int __init iscsi_target_init_module(void) > pr_debug("iSCSI-Target "ISCSIT_VERSION"\n"); > iscsit_global = kzalloc(sizeof(*iscsit_global), GFP_KERNEL); > if (!iscsit_global) > - return -1; > + return -ENOMEM; > > spin_lock_init(&iscsit_global->ts_bitmap_lock); > mutex_init(&auth_id_lock); you can also just use goto out, it has return -ENOMEM, no biggy.. Also, it will be useful to print the error message here as we are making this change.. irrespective of that : Looks good. Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com> -ck
On 3/30/23 16:59, Chaitanya Kulkarni wrote: > On 3/29/23 19:38, Jiapeng Chong wrote: >> The driver is using -1 instead of the -ENOMEM defined macro to specify >> that a buffer allocation failed. >> >> drivers/target/iscsi/iscsi_target.c:691 iscsi_target_init_module() warn: returning -1 instead of -ENOMEM is sloppy. >> >> Reported-by: Abaci Robot <abaci@linux.alibaba.com> >> Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=4644 >> Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> >> --- >> drivers/target/iscsi/iscsi_target.c | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) >> >> diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c >> index 834cce50f9b0..d3a40c3caaf5 100644 >> --- a/drivers/target/iscsi/iscsi_target.c >> +++ b/drivers/target/iscsi/iscsi_target.c >> @@ -688,7 +688,7 @@ static int __init iscsi_target_init_module(void) >> pr_debug("iSCSI-Target "ISCSIT_VERSION"\n"); >> iscsit_global = kzalloc(sizeof(*iscsit_global), GFP_KERNEL); >> if (!iscsit_global) >> - return -1; >> + return -ENOMEM; >> >> spin_lock_init(&iscsit_global->ts_bitmap_lock); >> mutex_init(&auth_id_lock); > > you can also just use goto out, it has return -ENOMEM, no biggy.. > Also, it will be useful to print the error message here as we > are making this change.. Printing an error message for allocation failures is frowned upon. Checkpatch will complain.
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c index 834cce50f9b0..d3a40c3caaf5 100644 --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -688,7 +688,7 @@ static int __init iscsi_target_init_module(void) pr_debug("iSCSI-Target "ISCSIT_VERSION"\n"); iscsit_global = kzalloc(sizeof(*iscsit_global), GFP_KERNEL); if (!iscsit_global) - return -1; + return -ENOMEM; spin_lock_init(&iscsit_global->ts_bitmap_lock); mutex_init(&auth_id_lock);
The driver is using -1 instead of the -ENOMEM defined macro to specify that a buffer allocation failed. drivers/target/iscsi/iscsi_target.c:691 iscsi_target_init_module() warn: returning -1 instead of -ENOMEM is sloppy. Reported-by: Abaci Robot <abaci@linux.alibaba.com> Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=4644 Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> --- drivers/target/iscsi/iscsi_target.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)