////// Use *_pool_zalloc rather than *_pool_alloc followed by memset with 0///// Copyright: (C) 2015 Intel Corp.  GPLv2.// Options: --no-includes --include-headers//// Keywords: dma_pool_zalloc, pci_pool_zalloc// virtual contextvirtual patchvirtual orgvirtual report //----------------------------------------------------------//  For context mode//---------------------------------------------------------- @depends on context@expression x;statement S;@@ * x = \(dma_pool_alloc\|pci_pool_alloc\)(...);  if ((x==NULL) || ...) S* memset(x,0, ...); //----------------------------------------------------------//  For patch mode//---------------------------------------------------------- @depends on patch@expression x;expression a,b,c;statement S;@@ - x = dma_pool_alloc(a,b,c);+ x = dma_pool_zalloc(a,b,c);  if ((x==NULL) || ...) S- memset(x,0,...); @depends on patch@expression x;expression a,b,c;statement S;@@ - x = pci_pool_alloc(a,b,c);+ x = pci_pool_zalloc(a,b,c);  if ((x==NULL) || ...) S- memset(x,0,...); //----------------------------------------------------------//  For org and report mode//---------------------------------------------------------- @r depends on org || report@expression x;expression a,b,c;statement S;position p;@@  x = @p\(dma_pool_alloc\|pci_pool_alloc\)(a,b,c); if ((x==NULL) || ...) S memset(x,0, ...); @script:python depends on org@p << r.p;x << r.x;@@ msg="%s" % (x)msg_safe=msg.replace("[","@(").replace("]",")")coccilib.org.print_todo(p[0], msg_safe) @script:python depends on report@p << r.p;x << r.x;@@ msg="WARNING: *_pool_zalloc should be used for %s, instead of *_pool_alloc/memset" % (x)coccilib.report.print_report(p[0], msg)