compat: add IS_ERR_OR_NULL()

[~tnikolova/compat/.git] / include / linux / compat-2.6.33.h

diff --git a/include/linux/compat-2.6.33.h b/include/linux/compat-2.6.33.h
index 43f1989..386ee4c 100644 (file)
--- a/include/linux/compat-2.6.33.h
+++ b/include/linux/compat-2.6.33.h
@@ -144,6 +144,11 @@ static inline bool pci_is_pcie(struct pci_dev *dev)
 #define __always_unused                        /* unimplemented */
 #endif
 
 #define __always_unused                        /* unimplemented */
 #endif
 

+static inline long __must_check IS_ERR_OR_NULL(const void *ptr)
+{
+       return !ptr || IS_ERR_VALUE((unsigned long)ptr);
+}
+

 #endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33)) */
 
 #endif /* LINUX_26_33_COMPAT_H */
 #endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33)) */
 
 #endif /* LINUX_26_33_COMPAT_H */