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authorAnton Vasilyev <vasilyev@ispras.ru>2017-08-01 16:25:59 +0300
committerJiri Kosina <jkosina@suse.cz>2017-10-12 16:37:19 +0300
commitf403f85f5334fb169d5c00deac106f140b62d3c9 (patch)
tree15600778f839c182c1dfd8bd4fa37f7cf0ff2d5b /drivers/misc/ibmasm
parentdf47b246ed176b504b1d50ad63aa5a3bf7551f82 (diff)
downloadlinux-f403f85f5334fb169d5c00deac106f140b62d3c9.tar.xz
misc: ibmasm: Return error on error path
If ibmasm_event_buffer_init() or ibmasm_heartbeat_init() fails, then ibmasm_init_one() release all resources and return 0 on error path. The patch adds corresponding error for fails. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Anton Vasilyev <vasilyev@ispras.ru> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/misc/ibmasm')
-rw-r--r--drivers/misc/ibmasm/event.c2
-rw-r--r--drivers/misc/ibmasm/module.c6
2 files changed, 5 insertions, 3 deletions
diff --git a/drivers/misc/ibmasm/event.c b/drivers/misc/ibmasm/event.c
index 8e540f4e9d52..7e33025b4854 100644
--- a/drivers/misc/ibmasm/event.c
+++ b/drivers/misc/ibmasm/event.c
@@ -155,7 +155,7 @@ int ibmasm_event_buffer_init(struct service_processor *sp)
buffer = kmalloc(sizeof(struct event_buffer), GFP_KERNEL);
if (!buffer)
- return 1;
+ return -ENOMEM;
buffer->next_index = 0;
buffer->next_serial_number = 1;
diff --git a/drivers/misc/ibmasm/module.c b/drivers/misc/ibmasm/module.c
index c5a456b0a564..e914b8c80943 100644
--- a/drivers/misc/ibmasm/module.c
+++ b/drivers/misc/ibmasm/module.c
@@ -94,12 +94,14 @@ static int ibmasm_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
snprintf(sp->dirname, IBMASM_NAME_SIZE, "%d", sp->number);
snprintf(sp->devname, IBMASM_NAME_SIZE, "%s%d", DRIVER_NAME, sp->number);
- if (ibmasm_event_buffer_init(sp)) {
+ result = ibmasm_event_buffer_init(sp);
+ if (result) {
dev_err(sp->dev, "Failed to allocate event buffer\n");
goto error_eventbuffer;
}
- if (ibmasm_heartbeat_init(sp)) {
+ result = ibmasm_heartbeat_init(sp);
+ if (result) {
dev_err(sp->dev, "Failed to allocate heartbeat command\n");
goto error_heartbeat;
}