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avoid invalid free if out of memory

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The surrounding code suggests this should only be freed if it was allocated
locally.
This commit is contained in:
Rolf Eike Beer 2018-07-01 12:50:33 +02:00
parent 4407cb6507
commit b565f45d77
1 changed files with 3 additions and 2 deletions
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5
src/_imaging.c
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@ -448,7 +448,7 @@ float16tofloat32(const FLOAT16 in) {
t1 = in & 0x7fff; // Non-sign bits
t2 = in & 0x8000; // Sign bit
t3 = in & 0x7c00; // Exponent
t1 <<= 13; // Align mantissa on MSB
t2 <<= 16; // Shift sign bit into position
@ -778,7 +778,8 @@ _prepare_lut_table(PyObject* table, Py_ssize_t table_size)
/* malloc check ok, max is 2 * 4 * 65**3 = 2197000 */
prepared = (INT16*) malloc(sizeof(INT16) * table_size);
if ( ! prepared) {
free(table_data);
if (free_table_data)
free(table_data);
return (INT16*) PyErr_NoMemory();
}