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debug_put_get: don't crash on null pointers

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MFC after:	7 days
This commit is contained in:
Vincenzo Maffione 2022-12-24 15:31:36 +00:00
parent b41818a28a
commit 92e8b4a630
1 changed files with 6 additions and 3 deletions
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7
sys/dev/netmap/netmap_kern.h
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@ -1628,8 +1628,8 @@ void __netmap_adapter_get(struct netmap_adapter *na);
#define netmap_adapter_get(na) \
do { \
struct netmap_adapter *__na = na; \
nm_prinf("getting %p:%s (%d)", __na, (__na)->name, (__na)->na_refcount); \
__netmap_adapter_get(__na); \
nm_prinf("getting %p:%s -> %d", __na, (__na)->name, (__na)->na_refcount); \
} while (0)
int __netmap_adapter_put(struct netmap_adapter *na);
@ -1637,7 +1637,10 @@ int __netmap_adapter_put(struct netmap_adapter *na);
#define netmap_adapter_put(na) \
({ \
struct netmap_adapter *__na = na; \
nm_prinf("putting %p:%s (%d)", __na, (__na)->name, (__na)->na_refcount); \
if (__na == NULL) \
nm_prinf("putting NULL"); \
else \
nm_prinf("putting %p:%s -> %d", __na, (__na)->name, (__na)->na_refcount - 1); \
__netmap_adapter_put(__na); \
})