///
/// Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR
///
// Confidence: High
// Copyright: (C) 2012 Julia Lawall, INRIA/LIP6.  GPLv2.
// Copyright: (C) 2012 Gilles Muller, INRIA/LiP6.  GPLv2.
// URL: http://coccinelle.lip6.fr/
// Options: --no-includes --include-headers
//
// Keywords: ERR_PTR, PTR_ERR, PTR_ERR_OR_ZERO
// Version min: 2.6.39
//

virtual context
virtual patch
virtual org
virtual report

@depends on patch@
expression ptr;
@@

- if (IS_ERR(ptr)) return PTR_ERR(ptr); else return 0;
+ return PTR_ERR_OR_ZERO(ptr);

@depends on patch@
expression ptr;
@@

- if (IS_ERR(ptr)) return PTR_ERR(ptr); return 0;
+ return PTR_ERR_OR_ZERO(ptr);

@depends on patch@
expression ptr;
@@

- (IS_ERR(ptr) ? PTR_ERR(ptr) : 0)
+ PTR_ERR_OR_ZERO(ptr)

@r1 depends on !patch@
expression ptr;
position p1;
@@

* if@p1 (IS_ERR(ptr)) return PTR_ERR(ptr); else return 0;

@r2 depends on !patch@
expression ptr;
position p2;
@@

* if@p2 (IS_ERR(ptr)) return PTR_ERR(ptr); return 0;

@r3 depends on !patch@
expression ptr;
position p3;
@@

* IS_ERR@p3(ptr) ? PTR_ERR(ptr) : 0

@script:python depends on org@
p << r1.p1;
@@

coccilib.org.print_todo(p[0], "WARNING: PTR_ERR_OR_ZERO can be used")


@script:python depends on org@
p << r2.p2;
@@

coccilib.org.print_todo(p[0], "WARNING: PTR_ERR_OR_ZERO can be used")

@script:python depends on org@
p << r3.p3;
@@

coccilib.org.print_todo(p[0], "WARNING: PTR_ERR_OR_ZERO can be used")

@script:python depends on report@
p << r1.p1;
@@

coccilib.report.print_report(p[0], "WARNING: PTR_ERR_OR_ZERO can be used")

@script:python depends on report@
p << r2.p2;
@@

coccilib.report.print_report(p[0], "WARNING: PTR_ERR_OR_ZERO can be used")

@script:python depends on report@
p << r3.p3;
@@

coccilib.report.print_report(p[0], "WARNING: PTR_ERR_OR_ZERO can be used")
801a73ff36d416a7ede54229b231e1d'>tree</a><a href='/cgit.cgi/linux/net-next.git/commit/include/uapi/drm/savage_drm.h?id=d9f1f61c0801a73ff36d416a7ede54229b231e1d'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/include/uapi/drm/savage_drm.h?id=d9f1f61c0801a73ff36d416a7ede54229b231e1d'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/include/uapi/drm/savage_drm.h'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?id=d9f1f61c0801a73ff36d416a7ede54229b231e1d'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/include?id=d9f1f61c0801a73ff36d416a7ede54229b231e1d'>include</a>/<a href='/cgit.cgi/linux/net-next.git/log/include/uapi?id=d9f1f61c0801a73ff36d416a7ede54229b231e1d'>uapi</a>/<a href='/cgit.cgi/linux/net-next.git/log/include/uapi/drm?id=d9f1f61c0801a73ff36d416a7ede54229b231e1d'>drm</a>/<a href='/cgit.cgi/linux/net-next.git/log/include/uapi/drm/savage_drm.h?id=d9f1f61c0801a73ff36d416a7ede54229b231e1d'>savage_drm.h</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/include/uapi/drm/savage_drm.h?id=d9f1f61c0801a73ff36d416a7ede54229b231e1d&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>