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Add semantic patch to remove checking for isc_mem_get() return value

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The isc_mem_get() cannot fail gracefully now, it either gets memory of
assert()s.  The added semantic patch cleans all the blocks checking whether
the return value of isc_mem_get() was NULL.
This commit is contained in:
Ondřej Surý 2019-07-16 15:50:45 +02:00
parent 7f828a213c
commit f63e696967
1 changed files with 41 additions and 0 deletions
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41
cocci/isc_mem_get_never_fail.spatch Normal file
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@ -0,0 +1,41 @@
@@
statement S;
expression V;
@@
V = isc_mem_get(...);
- if (V == NULL) S
@@
type T;
statement S;
expression V;
@@
V = (T *)isc_mem_get(...);
- if (V == NULL) S
@@
statement S;
expression V;
@@
if (V == NULL) V = isc_mem_get(...);
- if (V == NULL) S
@@
statement S1, S2;
expression V;
@@
V = isc_mem_get(...);
- if (V == NULL) S1 else { S2 }
+ S2
@@
type T;
expression V, E1, E2;
@@
- V = (T)isc_mem_get(E1, E2);
+ V = isc_mem_get(E1, E2);