Errors seen in LOGS/python-alsaaudio-0.7-2.fc17

This is a summary of errors seen when compiling with an experimental static analysis tool

Raw build logs can be seen here

Reference leaks

Code paths in which the reference count of an object is left too high, leading to memory leaks

alsaaudio.c	alsapcm_new	ob_refcnt of '*self' is 1 too high
alsaaudio.c	alsapcm_polldescriptors	ob_refcnt of '*result' is 1 too high
alsaaudio.c	alsamixer_getenum	ob_refcnt of '*result' is 1 too high
alsaaudio.c	alsamixer_new	ob_refcnt of '*self' is 1 too high
alsaaudio.c	alsacard_list	ob_refcnt of '*result' is 1 too high
alsaaudio.c	alsamixer_polldescriptors	ob_refcnt of '*result' is 1 too high

Segfaults within error-handling paths

Code paths in error-handling that will lead to a segmentatation fault (e.g. under low memory conditions)

alsaaudio.c	alsamixer_switchcap	dereferencing NULL (item->ob_refcnt) at alsaaudio.c:1330
alsaaudio.c	alsamixer_switchcap	dereferencing NULL (item->ob_refcnt) at alsaaudio.c:1324
alsaaudio.c	alsamixer_getrec	dereferencing NULL (item->ob_refcnt) at alsaaudio.c:1696
alsaaudio.c	alsamixer_getrec	calling PyList_Append with NULL as argument 1 (result) at alsaaudio.c:1695
alsaaudio.c	alsamixer_volumecap	dereferencing NULL (item->ob_refcnt) at alsaaudio.c:1255
alsaaudio.c	alsamixer_volumecap	dereferencing NULL (item->ob_refcnt) at alsaaudio.c:1249
alsaaudio.c	alsapcm_polldescriptors	calling PyList_SetItem with NULL as argument 1 (result) at alsaaudio.c:804
alsaaudio.c	alsamixer_list	dereferencing NULL (mixer->ob_refcnt) at alsaaudio.c:963
alsaaudio.c	alsamixer_list	calling PyList_Append with NULL as argument 1 (result) at alsaaudio.c:962
alsaaudio.c	alsamixer_getmute	dereferencing NULL (item->ob_refcnt) at alsaaudio.c:1647
alsaaudio.c	alsamixer_getmute	calling PyList_Append with NULL as argument 1 (result) at alsaaudio.c:1646
alsaaudio.c	alsamixer_getvolume	calling PyList_Append with NULL as argument 1 (result) at alsaaudio.c:1437
alsaaudio.c	alsamixer_getvolume	dereferencing NULL (item->ob_refcnt) at alsaaudio.c:1438
alsaaudio.c	alsacard_list	dereferencing NULL (item->ob_refcnt) at alsaaudio.c:155
alsaaudio.c	alsacard_list	dereferencing NULL (result->ob_refcnt) at alsaaudio.c:149
alsaaudio.c	alsacard_list	calling PyList_Append with NULL as argument 1 (result) at alsaaudio.c:154
alsaaudio.c	alsamixer_polldescriptors	calling PyList_SetItem with NULL as argument 1 (result) at alsaaudio.c:1954

Possible reference leaks

Code paths in which the reference count of an object might too large - but in which the reference in question came from a function not known to the analyzer.

The analyzer assumes such references are new references, but if the function returns a borrowed reference instead, it's probably not a bug

alsaaudio.c	alsamixer_switchcap	ob_refcnt of new ref from (unknown) PyUnicodeUCS4_FromString is 1 too high
alsaaudio.c	alsamixer_volumecap	ob_refcnt of new ref from (unknown) PyUnicodeUCS4_FromString is 1 too high