Thread (18 messages) 18 messages, 4 authors, 2016-12-30

[PATCH v4 2/2] net: 3com: typhoon: typhoon_init_one: make return values more specific

From: Thomas Preisner <hidden>
Date: 2016-12-30 02:38:21
Also in: lkml
Subsystem: 3cr990 network driver, networking drivers, the rest · Maintainers: David Dillow, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds

In some cases the return value of a failing function is not being used
and the function typhoon_init_one() returns another negative error code
instead.

Signed-off-by: Thomas Preisner <redacted>
Signed-off-by: Milan Stephan <redacted>
---
 drivers/net/ethernet/3com/typhoon.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/drivers/net/ethernet/3com/typhoon.c b/drivers/net/ethernet/3com/typhoon.c
index 25f2e92..1986ad1 100644
--- a/drivers/net/ethernet/3com/typhoon.c
+++ b/drivers/net/ethernet/3com/typhoon.c
@@ -2370,9 +2370,9 @@ typhoon_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	 * 4) Get the hardware address.
 	 * 5) Put the card to sleep.
 	 */
-	if (typhoon_reset(ioaddr, WaitSleep) < 0) {
+	err = typhoon_reset(ioaddr, WaitSleep);
+	if (err < 0) {
 		err_msg = "could not reset 3XP";
-		err = -EIO;
 		goto error_out_dma;
 	}
 
@@ -2386,16 +2386,16 @@ typhoon_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	typhoon_init_interface(tp);
 	typhoon_init_rings(tp);
 
-	if(typhoon_boot_3XP(tp, TYPHOON_STATUS_WAITING_FOR_HOST) < 0) {
+	err = typhoon_boot_3XP(tp, TYPHOON_STATUS_WAITING_FOR_HOST);
+	if (err < 0) {
 		err_msg = "cannot boot 3XP sleep image";
-		err = -EIO;
 		goto error_out_reset;
 	}
 
 	INIT_COMMAND_WITH_RESPONSE(&xp_cmd, TYPHOON_CMD_READ_MAC_ADDRESS);
-	if(typhoon_issue_command(tp, 1, &xp_cmd, 1, xp_resp) < 0) {
+	err = typhoon_issue_command(tp, 1, &xp_cmd, 1, xp_resp);
+	if (err < 0) {
 		err_msg = "cannot read MAC address";
-		err = -EIO;
 		goto error_out_reset;
 	}
 
@@ -2430,9 +2430,9 @@ typhoon_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if(xp_resp[0].numDesc != 0)
 		tp->capabilities |= TYPHOON_WAKEUP_NEEDS_RESET;
 
-	if(typhoon_sleep(tp, PCI_D3hot, 0) < 0) {
+	err = typhoon_sleep(tp, PCI_D3hot, 0);
+	if (err < 0) {
 		err_msg = "cannot put adapter to sleep";
-		err = -EIO;
 		goto error_out_reset;
 	}
 
-- 
2.7.4
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