Revision b23ff0e9330e4b11e18af984d50573598e10e7f9 authored by Mahesh Salgaonkar on 21 January 2010, 12:55:16 UTC, committed by Frederic Weisbecker on 28 January 2010, 13:15:51 UTC
On a given architecture, when hardware breakpoint registration fails due to un-supported access type (read/write/execute), we lose the bp slot since register_perf_hw_breakpoint() does not release the bp slot on failure. Hence, any subsequent hardware breakpoint registration starts failing with 'no space left on device' error. This patch introduces error handling in register_perf_hw_breakpoint() function and releases bp slot on error. Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: K. Prasad <prasad@linux.vnet.ibm.com> Cc: Maneesh Soni <maneesh@in.ibm.com> LKML-Reference: <20100121125516.GA32521@in.ibm.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
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| File | Mode | Size |
|---|---|---|
| .gitignore | -rw-r--r-- | 151 bytes |
| Kconfig | -rw-r--r-- | 4.8 KB |
| Makefile | -rw-r--r-- | 2.1 KB |
| gen_init_cpio.c | -rw-r--r-- | 12.3 KB |
| initramfs_data.S | -rw-r--r-- | 1021 bytes |
| initramfs_data.bz2.S | -rw-r--r-- | 1.0 KB |
| initramfs_data.gz.S | -rw-r--r-- | 1023 bytes |
| initramfs_data.lzma.S | -rw-r--r-- | 1.0 KB |
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