i40e/i40evf: fix up type clash in i40e_aq_rc_to_posix conversion

The error code sent into i40e_aq_rc_to_posix() are signed values, so we
really need to treat them as such.

Change-ID: I3d1ae0ee9ae0b1b6f5fc424f8b8cc58b0ea93203
Reported-by: Helin Zhang <helin.zhang@intel.com>
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ethernet/intel/i40e/i40e_adminq.h b/drivers/net/ethernet/intel/i40e/i40e_adminq.h
index b67b34c3553320f513ca62148993d5274a121543..ca81b0b9db97835330e2c4f9232cf52e01c2013c 100644 (file)
--- a/drivers/net/ethernet/intel/i40e/i40e_adminq.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_adminq.h
@@ -109,9 +109,10 @@ struct i40e_adminq_info {
 
 /**
  * i40e_aq_rc_to_posix - convert errors to user-land codes
- * aq_rc: AdminQ error code to convert
+ * aq_ret: AdminQ handler error code can override aq_rc
+ * aq_rc: AdminQ firmware error code to convert
  **/
-static inline int i40e_aq_rc_to_posix(u32 aq_ret, u16 aq_rc)
+static inline int i40e_aq_rc_to_posix(int aq_ret, int aq_rc)
 {
        int aq_to_posix[] = {
                0,           /* I40E_AQ_RC_OK */
@@ -143,8 +144,10 @@ static inline int i40e_aq_rc_to_posix(u32 aq_ret, u16 aq_rc)
        if (aq_ret == I40E_ERR_ADMIN_QUEUE_TIMEOUT)
                return -EAGAIN;
 
-       if (aq_rc >= ARRAY_SIZE(aq_to_posix))
+       if (aq_rc >= (sizeof(aq_to_posix) / sizeof((aq_to_posix)[0])) ||
+           aq_rc < 0)
                return -ERANGE;
+
        return aq_to_posix[aq_rc];
 }
 

diff --git a/drivers/net/ethernet/intel/i40evf/i40e_adminq.h b/drivers/net/ethernet/intel/i40evf/i40e_adminq.h
index 547b79b81ffe29ed257202d6d5c2f26e73238e51..e62e951cf2088f2b090c0de98edf748e21d6d052 100644 (file)
--- a/drivers/net/ethernet/intel/i40evf/i40e_adminq.h
+++ b/drivers/net/ethernet/intel/i40evf/i40e_adminq.h
@@ -109,9 +109,10 @@ struct i40e_adminq_info {
 
 /**
  * i40e_aq_rc_to_posix - convert errors to user-land codes
- * aq_rc: AdminQ error code to convert
+ * aq_ret: AdminQ handler error code can override aq_rc
+ * aq_rc: AdminQ firmware error code to convert
  **/
-static inline int i40e_aq_rc_to_posix(u32 aq_ret, u16 aq_rc)
+static inline int i40e_aq_rc_to_posix(int aq_ret, int aq_rc)
 {
        int aq_to_posix[] = {
                0,           /* I40E_AQ_RC_OK */
@@ -143,8 +144,10 @@ static inline int i40e_aq_rc_to_posix(u32 aq_ret, u16 aq_rc)
        if (aq_ret == I40E_ERR_ADMIN_QUEUE_TIMEOUT)
                return -EAGAIN;
 
-       if (aq_rc >= ARRAY_SIZE(aq_to_posix))
+       if (aq_rc >= (sizeof(aq_to_posix) / sizeof((aq_to_posix)[0])) ||
+           aq_rc < 0)
                return -ERANGE;
+
        return aq_to_posix[aq_rc];
 }