This script detects cases which have incorrect error handling for devm_ioremap_resource function, employing a NULL test instead of an IS_ERR() test.
Signed-off-by: Amitoj Kaur Chawla <amitoj1...@gmail.com> --- .../coccinelle/null/devm_ioremap_resource.cocci | 37 ++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 scripts/coccinelle/null/devm_ioremap_resource.cocci diff --git a/scripts/coccinelle/null/devm_ioremap_resource.cocci b/scripts/coccinelle/null/devm_ioremap_resource.cocci new file mode 100644 index 0000000..bc87efa --- /dev/null +++ b/scripts/coccinelle/null/devm_ioremap_resource.cocci @@ -0,0 +1,37 @@ +/// Correct error handling for devm_ioremap_resource +/// +// Confidence: High +// Copyright: (C) 2016 Amitoj Kaur Chawla +// Keywords: devm,devm_ioremap_resource + +virtual context +virtual org +virtual report + +// ---------------------------------------------------------------------------- + +@err depends on context || org || report@ +statement S; +expression e; +position j0; +@@ + + e = devm_ioremap_resource(...); +* if (!e@j0) S +// ---------------------------------------------------------------------------- + +@script:python err_org depends on org@ +j0 << err.j0; +@@ + +msg = "Incorrect error handling." +coccilib.org.print_todo(j0[0], msg) + +// ---------------------------------------------------------------------------- + +@script:python err_report depends on report@ +j0 << err.j0; +@@ + +msg = "Incorrect error handling." +coccilib.report.print_report(j0[0], msg) -- 1.9.1 _______________________________________________ Cocci mailing list Cocci@systeme.lip6.fr https://systeme.lip6.fr/mailman/listinfo/cocci
