mirror of https://gitee.com/openkylin/linux.git
2bb6a12a88
Error handling code following a kmalloc or kzalloc should free the allocated data. The semantic match that finds the problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @r exists@ local idexpression x; statement S; expression E; identifier f,f1,l; position p1,p2; expression *ptr != NULL; @@ x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...); ... if (x == NULL) S <... when != x when != if (...) { <+...x...+> } ( x->f1 = E | (x->f1 == NULL || ...) | f(...,x->f1,...) ) ...> ( return \(0\|<+...x...+>\|ptr\); | return@p2 ...; ) @script:python@ p1 << r.p1; p2 << r.p2; @@ print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> |
||
|---|---|---|
| .. | ||
| camera | ||
| qdsp5 | ||
| smd | ||
| Kconfig | ||
| Makefile | ||
| gpio_axis.c | ||
| gpio_event.c | ||
| gpio_input.c | ||
| gpio_matrix.c | ||
| gpio_output.c | ||
| synaptics_i2c_rmi.c | ||
| synaptics_i2c_rmi.h | ||