[PATCH V6 9/9] staging: rtl8192u: propagate errors in write_nic_dword

[Salah Triki]

Propagate errors from kzalloc and usb_control_msg and change the
return type of write_nic_dword from void to int.

Signed-off-by: Salah Triki <salah.tr...@acm.org>
---
 drivers/staging/rtl8192u/r8192U.h      |  2 +-
 drivers/staging/rtl8192u/r8192U_core.c | 10 +++++++---
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/rtl8192u/r8192U.h 
b/drivers/staging/rtl8192u/r8192U.h
index 27f9aa5..eb0c351 100644
--- a/drivers/staging/rtl8192u/r8192U.h
+++ b/drivers/staging/rtl8192u/r8192U.h
@@ -1132,7 +1132,7 @@ int read_nic_word(struct net_device *dev, int x, u16 
*data);
 int write_nic_byte(struct net_device *dev, int x, u8 y);
 int write_nic_byte_E(struct net_device *dev, int x, u8 y);
 int write_nic_word(struct net_device *dev, int x, u16 y);
-void write_nic_dword(struct net_device *dev, int x, u32 y);
+int write_nic_dword(struct net_device *dev, int x, u32 y);
 void force_pci_posting(struct net_device *dev);
 
 void rtl8192_rtx_disable(struct net_device *);
diff --git a/drivers/staging/rtl8192u/r8192U_core.c 
b/drivers/staging/rtl8192u/r8192U_core.c
index 2faffb2..3fdcb86 100644
--- a/drivers/staging/rtl8192u/r8192U_core.c
+++ b/drivers/staging/rtl8192u/r8192U_core.c
@@ -356,7 +356,7 @@ int write_nic_word(struct net_device *dev, int indx, u16 
data)
 }
 
 
-void write_nic_dword(struct net_device *dev, int indx, u32 data)
+int write_nic_dword(struct net_device *dev, int indx, u32 data)
 {
        int status;
 
@@ -365,7 +365,7 @@ void write_nic_dword(struct net_device *dev, int indx, u32 
data)
        u32 *usbdata = kzalloc(sizeof(data), GFP_KERNEL);
 
        if (!usbdata)
-               return;
+               return -ENOMEM;
        *usbdata = data;
 
        status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
@@ -375,9 +375,13 @@ void write_nic_dword(struct net_device *dev, int indx, u32 
data)
        kfree(usbdata);
 
 
-       if (status < 0)
+       if (status < 0) {
                netdev_err(dev, "write_nic_dword TimeOut! status: %d\n",
                           status);
+               return status;
+       }
+
+       return 0;
 }
 
 
-- 
1.9.1

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